Dr. Jordan Burns Tested 43+ Mattresses to Find the 11 Best Casper Mattress Alternatives of 2026

The AS3 won this guide on consistency rather than on a single standout number. It is the only mattress here scoring 10 for edge support, motion transfer, and cooling and breathability together, and that combination is what a shopper leaving Casper is usually actually looking for.

During testing, Dr. Burns found the hips stayed level with the shoulders when back sleeping, and the Bio-Pur comfort layer eased pressure at the shoulder and hip on the side without letting the midsection drop.

When a second tester moved on the opposite side, the far half of the surface barely registered it, which matters more on an all-foam bed than on a coil build where movement has somewhere to travel.

Sitting on the edge to put shoes on, the perimeter compressed and then held rather than sloping away, so the full width of a queen stays usable.

Best For:

• Back sleepers who want support without a rigid surface
• Side sleepers who need the shoulder and hip to give and then stop
• Couples sharing a queen or king who are woken by movement

Compare Instead:

• Amerisleep AS5 Hybrid if you want a distinctly softer surface, since at 3 out of 10 it is the softest build in this guide
• Saatva Classic if you want to choose a firmness, since it ships in three and carries a 365-night trial
• Vaya Mattress if value is the deciding factor, since it shares the top value score of 10 in this guide

The AS3 reads as a true medium under a body rather than the medium-firm some listings suggest. On the back, Dr. Burns found the hips settled roughly a couple of inches and then stopped, staying level with the shoulders, with the lumbar gap filled rather than bridged.

On the side, the shoulder went in further than the hip, which is the zoning doing its job. The HIVE transition layer is cut into five zones, softer under the shoulder and firmer under the hips, and the difference is noticeable when you move between the two positions rather than something you have to be told about.

Stomach sleeping is where the medium feel shows its limit. The hips stayed roughly level during testing, but a dedicated stomach sleeper over about 230 pounds will want more lift than a 5 out of 10 gives.

Repositioning is easy. The Bio-Pur layer releases quickly, so there is no hollow to climb out of when you roll, and our team found the surface refilled behind a moving body rather than holding the shape. When a second tester moved during testing, the far side stayed still.

On temperature, the surface felt cool on first contact and did not warm as quickly as the denser foam beds we compared in the same session, which is a real difference for two people sharing body heat rather than a promise about the whole night.

The AS3 fits a back or side sleeper of average weight who wants one surface that works in both positions, and a couple who are woken by movement more than by heat.

The AS3 is 12 inches in three layers, and each one earned its place in testing. The Bio-Pur comfort layer is plant-based memory foam with an open-cell structure, and it is what let the surface release quickly when a tester rolled instead of holding an impression the way the denser foam beds we compared did. That responsiveness is why the AS3 works for someone who changes position rather than settling once.

Under it, the HIVE transition layer is cut into five zones, firmer beneath the hips and softer beneath the shoulders. That is the layer doing the alignment work: Dr. Burns found the hips stayed level with the shoulders on the back, and the shoulder sank further than the hip on the side, which is the zoning behaving as designed rather than a uniform slab compressing evenly.

The Bio-Core base underneath is what kept the perimeter from sloping when a tester sat on the edge, and it is the layer the 20-year warranty is written against.

All three foams are CertiPUR-US certified, which means they are tested for low VOC emissions and made without certain regulated substances.

Keep the existing anchors in this section: Bio-Pur to https://amerisleep.com/biopur-memory-foam/ and CertiPUR-US to https://certipur.us/

The FORM Core is the only grid surface in this guide, and it earns the Purple alternative slot on how that grid behaves under a shoulder rather than on the material itself.

During testing, the grid compressed around the hip and shoulder and released immediately when a tester shifted, with no lag between pressing in and pushing back. Dr. Burns noted this is what separates a grid feel from memory foam more clearly than any spec does.

On motion, the Integra-Mesh reinforcement showed its value. Grid beds are known for surface wobble, and when a second tester moved during testing, the Core absorbed the movement locally rather than passing a ripple across the surface. It is the only pick in this guide scoring 10 for both trial period and motion transfer.

The edge softened under concentrated seated weight more than the coil-reinforced picks here did, though lying near the border produced no roll-off sensation.

Best For:

• Side and back sleepers who want immediate contouring without a slow sink
• Couples where one partner’s movement wakes the other
• Shoppers who want a long trial and a lifetime warranty rather than a fixed term

Compare Instead:

• Amerisleep Organica if you want a natural latex feel and organic textiles
• Zoma Boost if you want a taller build with coils under the foam, since at 15 inches it is the tallest profile in this guide
• Vaya Mattress if you want a traditional foam feel, since it shares the top value score of 10 here

On the back, Dr. Burns found the StableCore base held things even underneath while the GelGrid layer took the load at the shoulders and lower back, with no lag between pressing in and the surface pushing back.

Rolling onto the side, the grid compressed cleanly around the hip and shoulder and released just as quickly on the next shift. There is no brief stuck moment before it lets go, and that is the clearest way this surface differs from memory foam under the same body.

Stomach sleeping is the weakest of the three positions here. At 10 inches with a single medium feel, our team found the hips settled more than a dedicated stomach sleeper would want, particularly over roughly 230 pounds.

The edge held for lying close to the border, with no roll-off sensation. It softened noticeably under concentrated seated weight compared with the coil-reinforced builds in this guide, which is worth knowing if you sit on the side of the bed to dress.

The Core suits a side or back sleeper of average weight who wants the surface to give at the shoulder and then stop, and who prefers a responsive feel over a deep hug.

The Core is 10 inches in four parts, and the top 1.5 inches do most of the work you feel. The GelGrid layer, reinforced with Integra-Mesh, is an open-cell gel polymer grid, and it is what let the surface flex locally at the shoulder while staying stable a few inches away. That local behavior is also why a second tester’s movement did not travel: the grid columns buckle where the weight is and hold everywhere else.

Beneath it, a 2-inch ContourFlex transition layer smooths the handoff from the firm base to the grid, which is why the surface does not feel like it bottoms out onto something harder when you press through the top layer.

The 6-inch StableCore base is what kept the surface flat under a body rather than bowing at the middle, and it is the layer the lifetime warranty is written against. It is also why the edge holds for lying even without perimeter coils.

The AeroWeave cover is a cool-touch knit built for airflow, and it felt cool on first contact rather than warming immediately under a hand.

All foams are CertiPUR-US certified, tested for low VOC emissions and made without certain regulated substances. The mattress also carries GREENGUARD Gold and OEKO-TEX Standard 100 certification and uses a fiberglass-free fire barrier.

Pros

• The GelGrid layer released immediately when a tester rolled, with none of the brief stuck moment a memory foam surface produces
• Motion Transfer (10/10): a second tester’s movement was absorbed locally rather than rippling across the surface, which is unusual for a grid build
• Trial Period (10/10): 365 nights and a lifetime warranty, the longest tier in this guide on both
• Fiberglass-free build carrying CertiPUR-US, GREENGUARD Gold and OEKO-TEX Standard 100 certification

Cons

• Available in one firmness only, so sleepers who already know they want a plusher or firmer surface have no version to move to
• At 10 inches it shares the shortest profile in this guide, and stomach sleepers over roughly 230 pounds may find the hips settle further than they want
• Edge Support (9/10): the perimeter softened under concentrated seated weight more than the coil-reinforced picks here

The Boost takes the luxury slot on build depth. At 15 inches it is the tallest mattress in this guide and the only pick at that height, and the five-layer stack under the cover is what that height is being spent on.

Sitting on the edge to put shoes on, the zoned edge coils compressed and then held with no slide toward the floor. Dr. Burns noted this is where tall hybrids usually give something away and this one did not.

On the side, the graphite-infused Energex layer took the shoulder while the coils beneath the hips pushed back, so the waist did not fold. Rolling to the back, the surface refilled quickly behind the moving body rather than holding the previous shape.

The cover and quilted gel layer felt cool on first contact and did not warm as fast as the all-foam picks we compared in the same session.

Best For:

• Side and combination sleepers who want a substantial surface under them
• Couples who want coil support without a bouncy feel
• Sleepers who sit on the edge of the bed to dress

Compare Instead:

• Nolah Evolution 15 if you want three firmness levels to choose from and a lifetime warranty rather than a fixed term
• Amerisleep AS6 Black Series if cooling is the deciding factor, since it holds the cooling award in this guide
• Zoma Start Hybrid if you want the same brand in a low-profile build, since at 10 inches it shares the shortest profile here

The Boost reads as a medium-firm under a body, which is what the 5.5 rating suggests and what our team found. The first inch or so gives easily and then the surface firms up rather than continuing down.

On the side, Dr. Burns found the shoulder went into the graphite-infused Energex layer while the coils under the hips held their line, so the spine stayed level rather than dipping at the waist. That combination of a soft entry and a firm floor underneath is the thing a tall hybrid is supposed to deliver and often does not.

On the back, the lumbar gap filled without the hips dropping, and the surface pushed back through the foam rather than letting the body settle onto the coils.

Repositioning is quick. Rolling from side to back, the surface released and refilled behind the moving body with no hollow to climb out of. When a second tester moved during testing, the movement registered on the far side as a small change rather than a lift.

The perimeter is the standout. Sitting on the edge, the zoned edge coils compressed and then stopped, and lying close to the border produced no sense of sliding off.

The Boost suits a side or combination sleeper of average to above-average weight who wants depth under them and a firm edge, and who is not put off by a bed that sits high off the floor.

The Boost is 15 inches built in five parts, and the order matters more than the material names. The ultra-cooling cover and the quilted gel foam directly under it are what felt cool on first contact and kept the surface from warming as fast as the all-foam picks we compared in the same session.

Below that sits graphite-infused Energex memory foam, and this is the layer that took the shoulder on the side without letting it keep going. Graphite is in the foam to move heat rather than to change the feel, and the feel it produces is a contour that stops rather than a sink that continues.

The Reactiv foam under it is the responsiveness layer. It is why the surface refilled quickly behind a rolling body instead of holding the previous shape, which is what a combination sleeper actually notices at three in the morning.

The zoned edge coil unit is the reason this bed holds its perimeter. Sitting on the side to put shoes on, the coils compressed and then stopped rather than collapsing, and that same unit is what kept the hips from dipping on the side while the foam above handled the shoulder.

A durable base foam closes the build and carries the coil unit. All foams are CertiPUR-US certified, tested for low VOC emissions and made without certain regulated substances.

The Vaya earns the budget slot on its value score of 10, which shares the top of that column in this guide. It is also the plainest build here, and that turns out to be the honest way to describe it.

During testing, Dr. Burns found the 3-inch comfort layer gave at the shoulder and hip on the side and then met the 9-inch base underneath, which stopped the descent cleanly. There is no transition layer between the two, and you can feel where one ends and the other begins.

The surface settles more slowly than the coil and grid picks in this guide. Rolling from side to back produced a brief pause before the foam refilled behind the body, short of feeling stuck but slower than the responsive builds here.

The perimeter is where it gives most. At 7 out of 10 it holds the lowest edge support score in this guide, and sitting on the side to put shoes on, the foam kept compressing rather than stopping.

Best For:

• Side and back sleepers of average weight who sleep toward the middle of the bed
• Solo sleepers who do not use the outer few inches of the surface
• Shoppers who want a straightforward foam build with no coils

Compare Instead:

• Amerisleep AS3 if you want a faster-recovering foam surface and a firmer perimeter, since it scores 10 for edge support
• Zoma Start Hybrid if you want coils under the foam in a low-profile build
• Amerisleep AS6 Black Series if you sleep warm, since it holds the cooling award in this guide

The Vaya reads as a medium under a body, closer to the middle of its 5 to 6 rating than the top of it. The comfort layer gives quickly and the base underneath is firm enough that the give stops rather than continuing.

On the side, Dr. Burns found the shoulder and hip settled into the comfort foam and met the base, with the spine staying in line for an average-weight sleeper. There is no zoning here, so the surface compresses evenly rather than differently under the shoulder and the hip, and that is the clearest difference between this bed and the zoned builds in this guide.

On the back, the lumbar region filled without the hips dropping through to the base. Stomach sleeping sat at the limit of what a medium can do: the hips stayed roughly level for a lighter sleeper and settled further than a dedicated stomach sleeper would want above about 200 pounds.

Repositioning involves a brief settle. Our team found the foam refilled behind a moving body a beat slower than the Reactiv and grid surfaces here, though it never held the shape long enough to feel like climbing out.

When a second tester moved during testing, the far side registered a soft wave rather than a jolt, which is typical of a two-layer foam build.

On temperature, the surface warmed under a body faster than the coil and grid picks we compared in the same session. At 8 out of 10 it holds the lowest cooling score in this guide, and a sleeper who runs warm should weigh that.

The Vaya suits a side or back sleeper of average weight who sleeps toward the center of the bed and does not sit on the edge to dress.

The Vaya is 12 inches in two layers, which is unusual on this page and is the reason it feels the way it does. The 3-inch Vaya Comfort Foam on top is what gave at the shoulder and hip during side testing, and because there is no transition layer beneath it, that give ends against the base rather than tapering through a middle layer. Sleepers used to a three-layer or four-layer build will notice the handoff.

The 9-inch base is doing the support work alone. It is what kept the hips from dropping through on the back and what stopped the shoulder’s descent on the side, and it is the layer the 10-year warranty is written against. It is also why the perimeter behaves the way it does: with no coil unit and no reinforced rail, the edge is the same foam as the middle, which is what our team felt when a tester sat on the side and the surface kept compressing.

The cover is a lightweight knit built for airflow. It felt cool to the touch on first contact, though the surface underneath warmed faster under a body than the coil and grid builds we compared in the same session.

The Midnight Luxe wins the side-sleeper category on zoning rather than on softness. Plenty of beds cushion a shoulder; this one changes what it does between the shoulder and the hip.

During testing, Dr. Burns found the shoulder sank distinctly further than the hip on the side, so the spine ran straight rather than angling. The coils are softer through the shoulder zone and firmer through the hip zone, and the effect is easier to feel when moving between positions than when lying still.

The quilted pillow top gave immediately on contact rather than settling slowly, which is why repositioning does not involve pulling out of an impression.

Sitting on the edge to put shoes on, the perimeter compressed and then held, and lying close to the border produced no sense of rolling away.

Best For:

• Side sleepers who wake with a sore shoulder on flatter surfaces
• Combination sleepers who start on their side and finish on their back
• Couples who want a firm perimeter on a plush surface

Compare Instead:

• Amerisleep AS5 Hybrid if you want a distinctly softer surface, since at 3 out of 10 it is the softest build in this guide
• Saatva Classic if you want to choose your firmness, since it ships in three and shares the longest trial at 365 nights
• Amerisleep AS6 Black Series if cooling is the deciding factor, since it holds the cooling award here

The Midnight Luxe reads as a true medium with a plush entry. The quilted pillow top gives immediately, and then the coils underneath stop the descent, so the first impression is softer than the bed actually is.

On the side, Dr. Burns found the shoulder went in further than the hip, and that gap is the zoned coil unit rather than the foam. The spine stayed level from shoulder to hip rather than running uphill, which is the specific thing a side sleeper on a flat surface does not get.

On the back, the lumbar gap filled and the hips held their line without dropping into the coils. Stomach sleeping is the weakest position here: the medium feel let the hips settle more than a dedicated stomach sleeper will want.

Repositioning is smooth rather than bouncy. Rolling from side to back, the coils pushed back through the foam quickly enough to make the move easy without any trampoline effect. When a second tester moved during testing, the movement stayed local to their side.

The perimeter held for both sitting and lying, with no slide toward the floor.

On temperature, the cover felt cool on first contact and the surface did not warm as fast as the all-foam picks we compared in the same session.

The Luxe suits a side sleeper of average weight who wants a plush surface that still stops, and a combination sleeper whose night starts on the side.

The Midnight Luxe is 13.5 inches, and the layers are best understood by what each one did under a body rather than by depth, which Helix does not publish.

The quilted pillow top is the first thing a side sleeper meets, and it is what gave immediately on contact instead of settling slowly. That fast give is why the bed feels plush without producing an impression to climb out of.

Under it, the copper-gel memory foam layer is where the shoulder actually goes. During testing this is the layer that let the shoulder drop further than the hip before the coils took over, and it is also part of why the surface felt cool on first contact rather than warming immediately.

The responsive transition foam beneath keeps a sleeper from feeling the coils directly. Our team found the handoff between foam and springs unnoticeable, which is the point of that layer and the reason the bed reads as a foam surface rather than a coil one.

The zoned pocketed coil unit does the alignment work. Softer coils sit through the shoulder zone and firmer coils through the hips, and that difference is what kept the spine level on the side. The reinforced perimeter coils are why the edge compressed and then stopped when a tester sat on it.

A dense base foam closes the build and carries the coil unit. Helix’s own Tencel cover ships as standard, with the GlacioTex cooling cover available as an upgrade.

The Saatva Classic is the only innerspring in this guide, and the coil-on-coil build is why it does not behave like the foam and hybrid picks around it.

During testing, Dr. Burns found the surface pushed back immediately rather than accepting the body and holding it. Rolling from back to side, it refilled instantly behind the moving body, which is the clearest practical difference between this bed and the memory foam builds here.

Sitting on the edge to put shoes on, the reinforced foam rails held with no compression toward the floor, and lying close to the border felt the same as lying in the middle.

It is the only mattress in this guide scoring 10 on edge support, trial period and response time at the same time.

Our team tested the 11.5-inch Luxury Firm build. The taller 14.5-inch version and the Plush Soft and Firm feels are all available, and the 365-night trial is the right way to settle which one suits you.

Best For:

• Back and combination sleepers who want a responsive surface rather than a contouring one
• Shoppers who want to choose a firmness rather than accept a single feel
• Anyone who sits on the edge of the bed to dress

Compare Instead:

• Helix Midnight Luxe if you are primarily a side sleeper, since it holds the side-sleeper award here
• Amerisleep AS3 if you want a contouring foam feel rather than a coil one
• Nolah Evolution 15 if you want three firmness options in a hybrid with a plusher pillow top

The Luxury Firm build our team tested reads as a genuine medium-firm. The Euro top absorbs the first inch and then the coils underneath take over, so the surface meets you rather than letting you settle into it.

On the back, Dr. Burns found the hips stayed level with the shoulders and the lumbar region filled without the surface bridging under the curve. The Lumbar Zone quilting through the center of the Euro top is doing that work, and it is noticeable next to the unquilted foam surfaces in this guide.

On the side, the shoulder went in enough to keep the spine straight for an average-weight sleeper. A broader-shouldered side sleeper will find the Luxury Firm build holds the shoulder higher than they want, which is what the Plush Soft option exists for.

Stomach sleeping is the position this build handles best of the three, with the hips held up rather than settling.

Repositioning is immediate. The surface refilled behind a rolling body with no lag at all, which is the coil-on-coil structure rather than the foam above it. When a second tester moved during testing, the individually wrapped upper coils kept most of the movement local, though the steel base unit passed more of it across than the pocket-coil hybrids in this guide did.

The perimeter held completely for sitting and lying alike.

The Saatva suits a back or combination sleeper of average weight who wants to be held on top of a surface rather than inside one.

The Saatva Classic is built coil on coil, which is the whole reason it behaves differently from the hybrids in this guide. The tested build is 11.5 inches.

The 3-inch Euro top is sewn beneath the organic cotton cover rather than sitting on it, and it is what absorbed the first inch of a body without producing an impression. Through the center it carries Lumbar Zone quilting, and that is the part our team could feel: on the back, the lumbar gap filled rather than being bridged.

Under the Euro top, a layer of high-density memory foam reinforced by the Lumbar Zone Active Spinal Wire is what kept the middle of the mattress from giving more than the ends when a tester lay flat.

The upper coil layer is individually wrapped, and it is what let the shoulder go in on the side while the hips held. Because these coils move independently, they also absorb most of a partner’s movement before it reaches the far side.

High-density foam rails encase the whole unit, and they are the reason the edge held completely when a tester sat on it to put shoes on.

Beneath everything sits a second unit of tempered steel support coils. That is the layer producing the immediate push-back on repositioning, and it is also the layer that passes more movement across the bed than a pocket-coil-only build would.

The Evolution wins the pillow top category on range. The quilted Euro topper is the deepest top layer in this guide, and the zoned coil unit underneath stops the descent decisively rather than gradually.

Dr. Burns tested the Luxury Firm build with the GlacioTex Pillow Top, which brings it to 15 inches. The standard build is 14.

On the side, the shoulder and hip sank into the topper and met the coils rather than continuing down, with the spine staying level. The Tri-Zone coils are firmer through the middle third, which is what held the hips up while the surface above stayed soft.

When a second tester moved during testing, the wrapped coils absorbed the movement locally and the far side stayed still.

The AirBreath gusset around the top four inches is the part that is easy to overlook. It is why the deepest, most quilted section of this bed did not warm as fast as its depth would suggest.

Best For:

• Back sleepers who want a plush surface that still holds the hips up
• Side sleepers who want real depth at the shoulder
• Couples where one partner’s movement wakes the other

Compare Instead:

• Saatva Classic if you want three firmness options in a lower-profile build, since the tested build is 11.5 inches
• Zoma Boost if you want the tallest build in this guide, since at 15 inches it is the only pick at that height
• Amerisleep AS5 Hybrid if you want a softer surface, since at 3 out of 10 it is the softest build here

The build our team tested was the Luxury Firm with the GlacioTex Pillow Top, and it reads exactly as that name suggests: a soft first few inches over a firm structure, not a soft mattress.

The Euro topper gives immediately and deeply. On the side, Dr. Burns found the shoulder and hip sank well into it and then met the coil unit and stopped, with the spine level from shoulder to hip rather than dipping at the waist.

On the back, the hips held their line while the lumbar region filled. The Tri-Zone coils are firmer through the middle third, and the effect is a surface that feels plush at the shoulders and distinctly supportive under the hips.

Stomach sleeping worked better than the depth of the topper suggests, with the hips staying up rather than settling. A heavier stomach sleeper would still be better served by the Firm build.

Repositioning is easy despite the depth. The high-resilience foam under the topper refilled quickly behind a rolling body, so there is no impression to work out of. When a second tester moved during testing, the far side stayed still.

One tradeoff belongs here rather than in a spec line. The surface described above is the 15-inch upgraded build. The standard 14-inch Evolution has an inch less quilting on top, so expect a slightly shallower first impression.

The Evolution suits a back or side sleeper of average weight who wants a plush entry over a firm structure, and a couple who are woken by movement.

The Evolution is built around an 8-inch zoned coil unit with several foam layers above it. Nolah publishes depths for some layers and not others, so the layers below are named in the order a body meets them.

The organic cotton and ArcticTex cover felt cool on first contact rather than warming immediately under a hand. Directly beneath it, the quilted Euro topper is the layer that gives, and on the tested build it carries the extra inch of GlacioTex quilting.

The AirBreath gusset wraps the top four inches, and it is doing more than it looks like it is. On a bed with this much quilted material on top, that band of open structure is why the deepest part of the surface did not hold heat the way its depth would suggest.

The graphite-infused AirFoamICE beneath the topper is the transition between plush and firm. It is what let the shoulder keep descending on the side after the topper had given, without the sudden stop a thinner comfort stack produces.

High-resilience foam under that is the responsiveness layer, and it is why the surface refilled quickly behind a rolling body rather than holding the impression.

The HDMax Tri-Zone coil unit is the structure. It is firmer through the middle third, which is what kept the hips level while the layers above stayed soft, and its reinforced perimeter coils are why the edge held when a tester sat on it. A recycled plant fiber foundation layer stabilizes the coils underneath.

The AS6 holds the cooling award in this guide because it attacks temperature in four separate places rather than relying on a treated cover.

Dr. Burns tested the Luxury Firm build. The CryoCool cover felt cool on first contact, and during testing our team found the surface did not warm as quickly as the all-foam picks compared in the same session, with the difference holding well past the first few minutes rather than fading.

The PrecisionCoil unit underneath is part of that result and is easy to miss in a discussion about covers and foams. Air moves through a coil core in a way it cannot move through a solid foam base, and that is a structural advantage the all-foam picks in this guide do not have.

On the Luxury Firm build, the hips stayed level with the shoulders on the back, and on the side the shoulder went into the Bio-Pur layer while the coils beneath the hips held.

Best For:

• Warm sleepers who have given up on memory foam because of heat
• Sleepers who want to choose a firmness rather than accept a single feel
• Couples where one person runs hot and the other does not

Compare Instead:

• Amerisleep AS3 if temperature is not your main problem, since it covers similar ground in a simpler all-foam build
• Helix Midnight Luxe if you are primarily a side sleeper, since it holds the side-sleeper award here
• Zoma Boost if you want more height, since at 15 inches it is the tallest build in this guide

Our team tested the Luxury Firm build, which is the middle of the three AS6 options at 5 to 7 on the firmness scale. That matters, because the Plush Soft and Firm versions of this bed feel materially different and nothing below describes them.

The first contact is cool rather than neutral. The CryoCool cover registers as cool under a hand before any weight goes on it, which is unusual and is the single most distinctive thing about lying on this mattress.

On the side, Dr. Burns found the Bio-Pur layer took the shoulder and hip and then the PrecisionCoil unit stopped the descent, with the spine staying level. On the back, the hips held level with the shoulders and the lumbar gap filled rather than being bridged.

Stomach sleeping on the Luxury Firm build kept the hips roughly level, which is more than most surfaces in the 5 to 7 band manage. A dedicated stomach sleeper would still be better served by the Firm option.

Repositioning is quick. The coils push back through the foam, so rolling from side to back does not involve working out of an impression. When a second tester moved during testing, the far side barely registered it.

On temperature, the surface did not warm as fast as the all-foam beds we compared in the same session, and that held past the first few minutes rather than fading once the cover warmed.

The AS6 in Luxury Firm suits a back or combination sleeper of average weight who runs warm, and a couple who disagree about temperature more than about firmness.

The AS6 Black Series is a 14-inch hybrid, and its cooling result comes from four separate parts of the build rather than one of them.

The CryoCool cover is what a hand registers first. It felt cool on contact before any weight went on it, which is a different sensation from a cover that simply does not trap heat.

Directly beneath it, the TitanAir layer is titanium-infused memory foam. Its job is moving heat out of the comfort layers, and it is part of why the surface did not warm as quickly as the all-foam picks we compared in the same session. The ArcticWave cooling bands sit alongside it and are mineral-infused for the same purpose.

The Bio-Pur comfort layer under that is where a shoulder actually goes. During testing this is the layer that gave on the side and then handed off, rather than continuing down, and its open-cell structure is why it released quickly when a tester rolled.

The Affinity transition layer bridges the foam above and the springs below, which is why our team never felt the coils directly through the surface.

The PrecisionCoil unit is the support structure and the fourth cooling mechanism at once. Individually wrapped coils carry the load, keep the perimeter from sloping, and let air move through the core in a way a solid foam base cannot.

All foams are CertiPUR-US certified, tested for low VOC emissions. The mattress also carries GREENGUARD Gold and OEKO-TEX Standard 100 certification, which covers testing for harmful substances including fiberglass.

The Organica is the only latex pick in this guide, and the reason it earns that slot is buoyancy rather than the material label.

Dr. Burns tested the 12-inch Medium build. Rolling from side to back, the latex refilled instantly behind the moving body, with none of the settle a memory foam surface produces. Its response time score of 10 is the joint highest in this guide.

On the side, the shoulder went into the softer top layer of Talalay and then met the firmer layer beneath, with the spine staying level for an average-weight sleeper. Latex gives less than memory foam by design, and that is a preference rather than a flaw.

The organic wool quilted into the cover felt cool on first contact, and it is also the fire barrier, which is why this bed does not need a chemical treatment to meet the standard.

Sitting on the edge, the coil unit’s reinforced perimeter held rather than compressing away.

Best For:

• Combination sleepers who want a surface that pushes back rather than holds a shape
• Shoppers who want certified organic materials rather than a marketing claim
• Sleepers who dislike the sinking feel of memory foam

Compare Instead:

• Amerisleep AS3 if you want a contouring memory foam feel instead of a buoyant one
• Saatva Classic if you want a coil-forward surface with three firmness options
• Amerisleep AS5 Hybrid if you want a much softer surface, since at 3 out of 10 it is the softest build here

The 12-inch Medium build our team tested reads exactly as its 6 out of 10 rating suggests: firmer than a true medium, and buoyant rather than contouring.

The defining quality is what happens when you move. Dr. Burns found the latex refilled instantly behind a rolling body, so switching from side to back involves no settle and no impression to climb out of. This is the most responsive surface in this guide alongside the Saatva.

On the side, the shoulder went into the softer upper layer of Talalay and stopped against the firmer layer beneath, with the spine staying level for an average-weight sleeper. A broader-shouldered side sleeper will find latex holds the shoulder higher than memory foam does.

On the back, the hips held level with the shoulders and the lumbar region filled without the surface bridging. Stomach sleeping suited this build well, with the hips staying up rather than settling.

When a second tester moved during testing, the wrapped coils kept most of the movement local, though the latex above transmits slightly more than a memory foam comfort layer would.

The organic wool and cotton cover felt cool on first contact, and the coil core kept air moving in a way a solid latex base would not.

The Organica suits a combination sleeper of average weight who wants to lie on a surface rather than in one, and a back or stomach sleeper who wants support without rigidity.

The Organica is 12 inches, and the layers reconcile exactly: one inch of organic wool, two inches of soft Talalay latex, one inch of medium Talalay latex, and an eight-inch coil unit with edge support.

The organic wool quilted into the cotton cover does two jobs. It is the fire barrier, which is why this bed meets the standard without a chemical treatment, and it is the layer that felt cool on first contact during testing.

The two Talalay layers underneath are different densities on purpose, and that is what a side sleeper feels. The softer two inches let the shoulder in; the firmer inch beneath stops it. Because latex rebounds rather than holds, this pairing is also what produced the instant refill behind a rolling body that earned the response time score of 10.

The eight-inch coil unit is the part the label does not advertise and the part that changes the bed. Individually wrapped coils carry the load rather than a latex slab, which keeps the profile at 12 inches instead of the 15 an all-latex build would need for the same support. The reinforced perimeter is why the edge held when a tester sat on it, and the open structure of a coil core is why air moves through this mattress in a way it cannot move through solid latex.

The latex carries OEKO-TEX Standard 100, Rainforest Alliance and eco-INSTITUT certification, and the wool carries OEKO-TEX Standard 100.

The Zoma Start Hybrid earns the value slot on what it puts under you rather than on what it leaves out. Eight of its ten inches are a zoned pocket-coil core, which is an unusual ratio at this profile.

During testing, Dr. Burns found the two inches of foam above the coils gave briefly and then handed over to the springs. The surface reads as firm and supportive, which matches Zoma’s own 7 out of 10 rating.

Edge support was the clearest result. The coil unit runs a heavier gauge at the perimeter, and sitting on the side to put shoes on, the edge compressed and then stopped rather than sloping. At 10 inches, that is not typical.

Repositioning showed the limit. The gel memory foam layer settles before the coils take over, so there is a brief pause on rolling that the more responsive picks in this guide do not have.

Best For:

• Back and stomach sleepers who want a firm surface with coils underneath
• Sleepers who want a low-profile bed that does not sit high off the floor
• Anyone who sits on the edge of the bed to dress

Compare Instead:

• Amerisleep AS3 if you want a contouring medium feel rather than a firm one
• Vaya Mattress if you want an all-foam build and share the same top value score of 10
• Amerisleep AS5 Hybrid if you sleep on your side, since at 3 out of 10 it is the softest build in this guide

The Start Hybrid reads as firm under a body, which is what Zoma’s 7 out of 10 rating says and what our team found. The gel memory foam top layer gives on contact and then, an inch or so down, the coils take over decisively.

On the back, Dr. Burns found the hips stayed level with the shoulders and the surface held them up rather than letting them settle. Stomach sleeping is where this build is strongest of the three positions, with the hips staying lifted.

On the side, the shoulder met the coils sooner than on any other pick in this guide. With only two inches of comfort material above the spring unit, a side sleeper of average weight will feel that transition rather than sinking through it. This is a firm bed and it behaves like one.

Repositioning involves a brief pause. The gel memory foam settles before the coils push back, and rolling from back to side produced a half-second lag that the latex and grid surfaces in this guide do not have.

The edge is the surprise. Sitting on the side to tie shoes, the perimeter coils compressed and then held with no slide, and lying near the border felt the same as lying in the middle.

When a second tester moved during testing, the wrapped coils kept the movement fairly local, with a small ripple reaching the far side.

The Start Hybrid suits a back or stomach sleeper who wants a firm, supported surface close to the floor, and is not the right pick for a dedicated side sleeper.

The Start Hybrid is 10 inches, and the layers reconcile exactly: one inch of gel memory foam, one inch of Reactiv foam, and an eight-inch zoned pocket-coil core.

That ratio is the whole story of this mattress. Two inches of comfort material over eight inches of spring is what produced the firm surface our team found, and it is why a side sleeper meets the coils sooner here than on any other pick in this guide.

The gel memory foam on top is what gives on contact, and it is also the layer responsible for the pause on repositioning. It settles before the spring unit underneath begins pushing back, which is what the response time score of 8 is measuring.

The Reactiv layer beneath it is the counterweight to that. It rebounds rather than holds, and without it the brief settle would be a longer one.

The zoned pocket-coil core carries everything. It is what held the hips level on the back and lifted on the stomach, and its heavier-gauge perimeter is why the edge compressed and then stopped when a tester sat on it. Individually wrapped coils are also why a second tester’s movement stayed fairly local rather than travelling across the surface.

A breathable mesh knit cover finishes the build. All foams are CertiPUR-US certified, tested for low VOC emissions.

The AS5 Hybrid wins the soft category outright. At 3 out of 10 it is the softest build in this guide and the only pick at that end of the scale.

During testing, Dr. Burns found the shoulder and hip descended well past what any other surface here allows and then met the pocketed coil unit and stopped. Soft mattresses usually fail at that second part, and this one does not.

The Active Flex layer is the reason a deep comfort stack does not become a trap. Our team found the surface refilled behind a rolling body rather than holding the shape, so repositioning does not involve pushing out of a hollow.

Sitting on the edge to put shoes on, the reinforced perimeter coils held rather than letting the surface roll away, which on a bed this plush is unusual.

Best For:

• Side sleepers who want real depth at the shoulder and hip
• Lighter and petite sleepers who do not compress a firmer surface enough to benefit from it
• Sleepers who want a plush surface without a hard floor underneath it

Compare Instead:

• Amerisleep AS3 if you want balanced support across positions rather than a soft surface
• Helix Midnight Luxe if you are a side sleeper who wants a firmer surface with zoned coils
• Nolah Evolution 15 if you want a plush pillow top over a firmer structure, with three firmness levels to choose from

The AS5 Hybrid reads as genuinely soft rather than plush-but-firm, and at 3 out of 10 that is what Amerisleep intends.

On the side, Dr. Burns found the shoulder and hip went deeper than on any other surface in this guide before anything stopped them, and then the coil unit did stop them cleanly. The spine stayed level rather than dipping at the waist, which is the whole test for a soft mattress and the one most of them fail.

On the back, the hips settled further than a firmer bed allows. For a lighter sleeper the lumbar region still filled and the spine stayed neutral. Above roughly 230 pounds, our team found the hips dropped more than a back sleeper should accept.

Stomach sleeping is not what this bed is for. At 3 out of 10 the hips settle and the lower back arches.

Repositioning is easier than the depth suggests. The Active Flex layer refilled behind a rolling body rather than holding the impression, though there is still a brief settle that the coil-forward picks in this guide do not have.

The perimeter held for both sitting and lying, with no roll-off despite the softness above it.

On temperature, the coil core kept air moving through a comfort stack deep enough that a solid foam base would have trapped heat under it, and the surface did not warm as fast as the all-foam picks we compared in the same session.

The AS5 Hybrid suits a side sleeper, particularly under about 150 pounds, who wants depth at the shoulder and hip and a surface that still catches them.

The AS5 Hybrid is 14 inches, and it is built to be soft without being shapeless. Amerisleep does not publish individual layer depths for the hybrid build, so the layers below are named in the order a body meets them.

The breathable cover sits over a Bio-Pur comfort layer, and this is where a shoulder first goes. Bio-Pur is plant-based memory foam with an open-cell structure, so it gives deeply but releases quickly rather than holding an impression the way a denser memory foam would.

Under it, the Active Flex layer is the reason this bed works. It adds softness and rebound at the same time, and during testing it is what refilled behind a rolling body. Without it, a comfort stack this deep would be one you settle into and then have to climb out of.

The Affinity transition layer carries HIVE technology, hexagonal cutouts that vary in firmness across five zones. It is softer under the shoulders and firmer under the lower back, and it is what kept the spine level on the side while the surface above stayed plush.

The individually wrapped coil unit is what stops the descent. On a soft mattress that is the critical job, and during testing it is the layer that caught the shoulder and hip rather than letting them keep going. Its reinforced perimeter is why the edge held when a tester sat on it, and the open coil structure is why air moves through a build this deep.

A high-density foam base closes the mattress and carries the coil unit. All foams are CertiPUR-US certified, tested for low VOC emissions.