Dr. Jordan Burns Tested 43+ Mattresses to Find the 12 Best Mattresses Without Fiberglass of 2026

The AS3 earned the top spot for balancing pressure relief and support without a fiberglass fire barrier, on a CertiPUR-US certified build. Testing the AS3 for us, Dr. Colleen Ehrnstrom found the Bio-Pur comfort layer took pressure off the shoulder and hip when she lay on her side, while the HIVE-zoned Affinity layer kept her midsection from sinking when she rolled to her back. Between position changes the surface recovered its shape quickly instead of holding an impression, which helps combination sleepers who move at night. Motion on the opposite side of a queen stayed muted when a second tester shifted.

Best For:

– Side and combination sleepers who want shoulder and hip cushioning
– Back sleepers who want balanced medium support
– Couples who want strong motion isolation and a fiberglass-free build

Compare Instead:

– Amerisleep Organica if you want a latex-and-wool natural build over plant-based foam
– FORM Prime if you want a firmer, more responsive grid-and-coil feel with stronger edge support
– Zoma Start if you want a similar medium foam feel at a lower price

In our testing, the AS3’s medium feel suited side and combination sleepers, with the Bio-Pur layer cushioning the shoulders and hips. The foam layers held partner motion in place, so a second tester moving on the far side of a queen barely registered, and the surface recovered its shape quickly between position changes rather than holding a body impression.

The medium feel gives couples with different firmness preferences a workable middle ground, though sleepers who want a firmer surface, especially dedicated stomach sleepers, may prefer a firmer Amerisleep build. Best for side and combination sleepers who want joint cushioning on a fiberglass-free foam bed.

The AS3 is built from three foam layers. The Refresh cover at the surface is what read cool to the touch on contact and helped the surface move heat and moisture rather than holding it. Beneath it, the Bio-Pur comfort foam is what cushioned the shoulders and hips without the stuck feel of denser memory foam.

Beneath the cover lies the Bio-Pur® memory foam, innovatively crafted from castor oil as opposed to traditional petroleum derivatives. This alternative approach yields a breathable, durable memory foam that retains the pressure-relieving benefits of conventional memory foam. The intermediary Affinity layer incorporates HIVE® technology, offering targeted support and cushioning through a zoned configuration that addresses the specific needs of different body regions. The foundational Bio-Core® layer ensures the mattress’s longevity and structural integrity, supporting optimal spinal alignment and preventing sagging over time.

The FORM Prime made the list as a fiberglass-free hybrid that pairs grid-style cooling and responsiveness with genuine zoned coil support. What stood out in testing was stability: Dr. Burns shifted his weight across the GelGrid surface and the Integra-Mesh reinforcement held it composed, without the ripple common to open-grid beds. On his back, the lumbar zone of the ZoneCoil 7-Series pushed back where the lower back needed it while the hips stayed level. The AeroWeave cover read cooler to the touch than the standard fabric covers the team compares against and held that cooler feel longer. When a second tester moved on one side of the bed, motion on the other side registered only faintly.

Best For:

– Side and back sleepers who want zoned lumbar support with a stable surface
– Couples who want strong motion isolation and firm, usable edges
– Hot sleepers who want a grid surface that channels heat rather than absorbing it

Compare Instead:

– Amerisleep Organica if you want a latex feel and all-natural materials
– Amerisleep AS3 if you prefer pressure-relieving memory foam over a responsive grid
– Vaya Hybrid if budget is your primary concern

The surface of the FORM Prime is soft at the point of contact but does not sink the way foam does. The GelGrid layer compresses precisely where the body applies pressure, at the shoulders, hips, and the curve of the lower back, and holds firm everywhere else, so the effect stays consistent across positions.

On his side, Dr. Burns found the shoulder sank enough to take pressure off the joint without dropping the rest of the torso out of alignment, and the ContourFlex transition layer below the grid smoothed the handoff to the coils so the surface read as one unified feel. Rolling onto his back, the lumbar zone of the ZoneCoil 7-Series engaged with clear pushback where the lower back needed it and no sense of the hips overcompressing.

Motion transfer tested exceptionally well: with a partner moving on one side, only a faint, brief disturbance carried across, thanks to the wrapped coils and the Integra-Mesh reinforcement in the grid layer. Edge support held firm when he sat on the side to get in and out, keeping the full sleep surface usable for couples sharing a queen or king.

The FORM Prime is a five-layer hybrid, assembled in the USA, with certifications from:

• CertiPUR-US® (foams tested for low VOC emissions and made without formaldehyde, certain flame retardants, and regulated heavy metals)
• GREENGUARD Gold (tested for low chemical emissions in indoor environments)
• OEKO-TEX® (materials tested for harmful substances)

The build contains no fiberglass.

Working top to bottom:

The AeroWeave cover sits at the surface. It is engineered for contact cooling and breathability, and in testing it read cool to the touch immediately on contact, holding that cooler feel noticeably longer than the standard fabrics we compare against.

Beneath the cover is the GelGrid™ + Integra-Mesh™ layer. The GelGrid™ is a gel-based open-cell grid structure with more than 1,400 open-air channels that create continuous airflow pathways.

Unlike traditional foam, which absorbs and holds heat, these channels let heat move outward as pressure compresses the cells.

The Integra-Mesh™ reinforcement is woven into the grid to reduce surface ripple and lateral movement, addressing the instability that affects other grid-style designs and helping the cells hold their shape over time.

The ContourFlex™ transition layer sits below the grid. It is a foam layer calibrated to bridge the give of the gel grid above and the firmness of the coil system below, so the handoff between the two materials feels continuous rather than abrupt.

The ZoneCoil™ 7-Series pocketed coil unit provides the support foundation.

Seven distinct zones of differential coil tension run across the mattress, firmer under the lumbar and hip region where the body carries the most weight, and softer under the shoulders where the body needs to sink slightly for lateral alignment.

Because each coil is individually wrapped, they compress independently, which is a primary reason the motion isolation is as strong as it is.

The StableCore™ Foundation sits at the base and provides structural stability across the full mattress, including the perimeter. It contributes to the firm, consistent edge support that held up throughout testing.

Pros:

• Edge Support (10/10): the perimeter held firm when a tester sat to get in and out, keeping the full surface usable
• Motion Transfer (10/10): wrapped coils plus Integra-Mesh made partner movement register only faintly during testing
• ZoneCoil 7-Series gave real lumbar pushback on the back while the shoulders were allowed to sink for alignment

Cons:

• Feel preference: the responsive grid does not cradle the way deep-conforming memory foam does, so sleepers who want an enveloping, still feel will not get it here
• Value (8/10): at $2,199 to $3,199 it is among the priciest picks on this list, a high entry point for a fiberglass-free bed
• Firmness fit: dedicated stomach sleepers over 200 pounds may find more hip sinkage than the position wants

The Zoma Start earned Best Value as the lowest-priced fiberglass-free all-foam bed on this list that still held its support in testing. Dr. Burns found the gel memory foam comfort layer contoured at the shoulders and hips without the slow, stuck sink of denser foam, and the Reactiv transition layer let him change position without fighting the surface. On his back the base foam kept his hips from dropping below his shoulders. The surface felt cool to the touch on first contact and did not warm up as quickly through the first hours as the denser all-foam beds the team compared, though it retains more heat than the hybrids higher on this list.

Best For:

– Budget shoppers who want a fiberglass-free foam bed
– Back and combination sleepers who want a responsive medium feel
– Guest rooms and lighter-weight sleepers

Compare Instead:

– Amerisleep AS3 if you want deeper plant-based contouring and stronger motion isolation
– Zoma Boost if you want a cooler hybrid with a plush pillow-top surface
– Vaya Hybrid if you want coils and more bounce at a similar price

In testing, the Zoma Start read more responsive than a typical all-foam bed. Dr. Burns found the Reactiv transition foam adapted quickly as he changed position, and the medium feel gave back and combination sleepers a supportive surface without the stuck sink of denser foam.

The ventilated cover and the gel memory foam comfort layer under it are why the surface felt cool to the touch on contact and did not warm up as quickly through the first hours as the denser all-foam beds we compared, though it holds more heat than the hybrids on this list. The gel foam is what contoured at the shoulders and hips without the slow, stuck sink of denser foam. Beneath it, the Reactiv transition foam is why the bed responded quickly when we changed position rather than trapping us in place. The base foam is what kept the hips from dropping below the shoulders on the back and is the layer doing the durability work over time.

The Vaya Hybrid won Best Hybrid for pairing a bouncy pocketed-coil core with a fiberglass-free foam comfort layer at a low price. Dr. Burns found the Vaya Comfort Foam gave at the shoulders and hips on his side while the coils pushed back underneath, so he sat higher on the surface than on an all-foam bed. Response time was quick: rolling from side to back, the surface kept up without a sinkhole feel. Edge support was the tradeoff. Sitting on the perimeter to get in and out, Dr. Burns felt the thin cover let the springs read close to the edge and the side compressed more than on the firmer hybrids here.

Best For:

– Budget shoppers who want coils without fiberglass
– Combination sleepers who want quick response and bounce
– All-position sleepers at average body weight

Compare Instead:

– FORM Prime if you want firmer, more reinforced edges and zoned lumbar support
– Helix Midnight Luxe if you want a more refined cover and stronger cooling
– Zoma Start if you prefer an all-foam feel at a lower price

In testing, the Vaya Hybrid’s surface molded to the shoulders and hips while the coils kept the sleeper from sinking too far, so the spine stayed in line. Dr. Burns found the coil-and-foam pairing delivered strong value at this price, though the thin cover let the springs read close to the edge when he sat down to get in and out.

That give-at-the-joints, support-underneath balance is what carried its comfort across positions. Best for combination sleepers who want quick response and bounce on a fiberglass-free build.

The quilted cotton top and light knit cover are why the surface felt soft and breathable on contact. The Vaya Comfort Foam under it is what gave at the shoulders and hips on the side, and the pocketed coils below are why we sat higher on the surface than on an all-foam bed and why partner movement stayed contained when a second tester shifted. Because each coil is wrapped individually, motion did not carry across the bed. The base foam is what steadies the coil unit and holds the shape over time. The thin cover along the perimeter is also why the springs read close to the edge when we sat down, which is the bed’s main support tradeoff.

The Midnight Luxe earned Best for Side Sleepers for cushioning the shoulder and hip while keeping the spine level on its single medium feel. Dr. Burns found that on his side the copper-gel memory foam let the shoulder settle in without bottoming out, and the zoned coils firmed up under the midsection so the hips did not tip. He chose the GlacioTex cover option, which read cooler to the touch than the standard TENCEL cover through the first hours of testing. The reinforced perimeter coils held firm when he sat on the edge, so the full width of the bed stayed usable.

Best For:

– Side sleepers who want shoulder and hip pressure relief with alignment
– Couples who want firm edges and strong cooling
– Back-and-side combination sleepers on a single medium feel

Compare Instead:

– FORM Prime if you want a more responsive grid surface over conforming foam
– Amerisleep AS3 if you want a lower-priced medium feel with deeper contouring
– Nolah Evolution 15 if you want a plusher pillow-top with firmness choice

In our testing, the Midnight Luxe combined supportive coils with foam that cradled without much sinkage, so the surface felt plush while the shoulders and hips stayed cushioned. Dr. Burns found the copper-gel foam let the shoulder settle in on the side while the zoned coils kept the hips level, and the reinforced edge held firm when he sat down to get in and out. The GlacioTex cover option read cooler to the touch through the first hours than the standard TENCEL cover.

The cover choice sets the surface: the GlacioTex option read cooler to the touch through the first hours than the TENCEL option we also tested. The copper-gel memory foam under it is what let the shoulder settle in on the side without bottoming out, and the Memory Plus and polyfoam transition layers are why the surface conformed without leaving us stuck. The zoned pocketed coils are the reason the hips stayed supported while the shoulders were allowed to sink for alignment, and the reinforced perimeter coils are what held firm when we sat on the edge, keeping the full width usable for couples.

The Zoma Boost won Best Luxury for a plush, cooler-feeling pillow-top surface over a responsive hybrid core, with no fiberglass in the build. Dr. Burns found the quilted graphite-infused foam gave a light, breathable cushion at the shoulders rather than the dense, slick feel of older pillow-tops, and the Reactiv layer kept him from sinking so far that changing position felt like work. The surface read cool to the touch on contact and held that feel into the first hours better than the denser foam beds the team compared. Edge support held when he sat on the perimeter.

Best For:

– Side and lighter-weight sleepers who want a plush surface
– Hot sleepers who want a cooler-feeling pillow-top
– Shoppers who want a luxury feel without fiberglass

Compare Instead:

– Nolah Evolution 15 if you want firmness options in a tall luxury pillow-top
– FORM Prime if you want firmer zoned support and a more stable grid surface
– Amerisleep AS6 Black Series if you want a plush hybrid with a deeper cooling stack

In testing, the Zoma Boost balanced a cooler-feeling surface with gentle, pressure-relieving support. Dr. Burns found the quilted top gave a modern take on the pillow-top feel, light and breathable rather than the denser, slicker finish of older designs, and it read cool to the touch into the first hours.

The ultra-cool soft cover and the graphite-infused quilted foam under it are why the surface read cool to the touch on contact and gave a light, breathable cushion rather than the dense feel of older pillow-tops. The graphite in the comfort foam is what helped the surface shed heat in the first hours we compared it against denser foam beds. The Reactiv transition layer is why the bed stayed responsive and did not swallow us when we changed position, and the individually wrapped coils are what kept partner motion contained and held the edge firm when we sat down. The base foam steadies the coil unit for the long term.

The Saatva Classic earned Best Innerspring as a coil-on-coil bed that skips fiberglass entirely, using a wool-and-thistle flame barrier instead. Dr. Burns tested the Luxury Firm build and found the Euro pillow top gave a gentle sink-in at the surface while the dual steel coil layers kept his hips and shoulders in line, so the bed felt plush without going soft underneath. Response was quick off the coils, and the reinforced perimeter held firm when he sat on the edge. The tradeoff is weight and firmness: the Luxury Firm reads firmer than average, and lighter side sleepers may prefer the Plush Soft build.

Best For:

– Back and stomach sleepers who want coil support with a pillow-top surface
– Couples and plus-size sleepers who want firm edges and a durable core
– Shoppers who want a fiberglass-free innerspring with firmness and height choices

Compare Instead:

– Amerisleep Organica if you want a fiberglass-free bed with natural latex and wool
– Nolah Evolution 15 if you want a taller pillow-top hybrid with more cooling
– Helix Midnight Luxe if you want more contouring for dedicated side sleeping

In testing, the Saatva Classic’s three firmness builds and two heights gave it broad range across side, back, and stomach sleepers. Dr. Burns found the surface combined a gentle sink-in with steady support underneath, plush at the top without losing the coil support that kept the spine in line.

The 3-inch organic-cotton Euro pillow top is what gave the gentle sink-in we felt at the surface, and the wool-and-thistle flame barrier is how Saatva skips fiberglass here. Underneath, the micro-coil layer is what took pressure off the shoulders and hips while still feeling supportive, and the base coil layer is why the hips and shoulders stayed in line and the edge held firm when we sat down. The dual coil-on-coil structure is also the reason the surface responded quickly and read cooler than an all-foam bed of similar height. The CertiPUR-US certified support system rounds out the build.

The Nolah Evolution 15 won Best Pillow Top for a tall, cooler-feeling Euro-style top over a zoned hybrid core, offered in three firmness builds. Dr. Burns tested the Luxury Firm and found the quilted HTC top gave a cushioned surface while the AirFoamICE layer contoured at the shoulders without holding him in place. The zoned pocketed coils firmed under the midsection so his hips stayed supported on his back. The ArcticTex cover and quilted foam read cool to the touch on contact and did not warm up as fast as the denser foam beds the team compared. At 15 inches, the height is the tradeoff.

Best For:

– Side, back, and combination sleepers who want a plush pillow-top with support
– Hot sleepers who want a cooler-feeling luxury surface
– Shoppers who want to pick their firmness (Plush, Luxury Firm, or Firm)

Compare Instead:

– Zoma Boost if you want a plush cooling pillow-top at a lower price
– Saatva Classic if you prefer a coil-on-coil innerspring feel
– Amerisleep AS6 Black Series if you want a plush all-hybrid cooling stack

The three firmness builds let sleepers dial in the feel they want, and the cooling-oriented fabrics, foams, and coils carry across all of them. In our testing the surface read cool to the touch and held that feel into the first hours better than the denser foam beds we compared, which helps during warm seasons and for couples sharing body heat.

The organic-cotton and ArcticTex cover plus the quilted HTC foam are why the surface read cool to the touch on contact and did not warm up as fast in the first hours as the denser foam beds we compared. The graphite-infused AirFoamICE is what contoured at the shoulders without holding us in place, and the two transition foams are why the handoff to the coils felt smooth rather than abrupt. The three-zone pocketed coil unit is the reason the hips stayed supported while the shoulders were allowed to sink, and the plant-fiber base steadies the tall build. The side handles matter in practice, because at 15 inches this is a heavy bed to reposition.

The AS6 Black Series earned Best Cooling as a fiberglass-free hybrid whose cover and comfort stack read the coolest to the touch on this list. Dr. Burns found the CryoCool cover and TitanAir layer felt cool on first contact and, over the ArcticWave bands and the PrecisionCoil core, did not warm up as quickly through the first hours as the denser foam beds the team compared. On the Luxury Firm build the Bio-Pur layer cushioned his shoulders and hips while the coils kept his hips supported on his back. Choose the firmness to the sleeper: the Plush Soft build reads soft enough that dedicated stomach sleepers may want the Firm option instead.

Best For:

– Hot sleepers who want the deepest cooling stack on this list
– Side and back sleepers on the Luxury Firm build
– Shoppers who want to choose Plush Soft, Luxury Firm, or Firm

Compare Instead:

– Amerisleep AS3 if you want a similar Bio-Pur feel at a lower price
– Nolah Evolution 15 if you want a pillow-top hybrid with firmness options
– FORM Prime if you want a grid surface with zoned lumbar support

In testing, the AS6 contoured closely on first contact, most noticeably on the side, where Dr. Burns found the shoulders and hips sank in enough to take pressure off without feeling stuck. Rolling onto the back, the lower back stayed supported, though the plush build let him sink in more than a firmer mattress would.

For hot sleepers, the surface held up: even after an extended stretch it did not warm up the way the softer all-foam beds we compared tended to, with the open-cell Bio-Pur foam and the coil core moving heat rather than trapping it.

On the Plush Soft build, Dr. Burns found the midsection sank far enough that dedicated stomach sleepers may want the Firm option for a flatter, more neutral surface.

The AS6 Black Series is a hybrid, and the build is why it tested the way it did. The CryoCool cover and the TitanAir layer beneath it are what read cool to the touch on first contact, and the ArcticWave bands over the coil core are why the surface did not warm up as fast through the first hours as the denser foam beds we compared. The Bio-Pur comfort foam is what let the shoulders and hips settle in on the side without the stuck feel of traditional memory foam, while the PrecisionCoil support core is what kept the hips from dropping below the shoulders on the back and gave the quick response we felt changing positions. The Affinity transition layer bridges the two so the handoff feels continuous.

The Organica won Best Eco-Friendly as a GOTS-certified latex-and-wool hybrid that uses wool as its flame barrier instead of fiberglass. Dr. Burns found the hand-tufted organic cotton cover felt cool and soft on contact, and the Talalay-over-Dunlop latex gave a buoyant contour at the shoulders and hips rather than the slow sink of memory foam. The pocketed coils kept his hips level on his back and stayed quiet when a second tester moved. The tradeoff is weight: the latex-and-coil build is heavier than the foam beds here and harder to move alone.

Best For:

– Shoppers who want a GOTS-certified natural build without fiberglass
– Side, back, and combination sleepers who want a latex feel
– Couples who want quiet motion isolation and a cooler cotton cover

Compare Instead:

– Saatva Classic if you want a fiberglass-free innerspring with a pillow-top
– FORM Prime if you want a firmer hybrid with zoned lumbar support
– Amerisleep AS3 if you want a lower-priced plant-based foam feel

In testing, the Organica balanced support with a plush latex contour. Dr. Burns found the cotton-and-wool cover read cool to the touch on contact and the coils kept the hips level on the back while staying quiet when a second tester moved. Best for side, back, and combination sleepers who want a natural, fiberglass-free build.

The hand-tufted GOTS organic-cotton cover is why the surface felt cool and soft on contact, and the New Zealand Joma Wool under it doubles as the flame barrier that lets the Organica skip fiberglass. The Talalay-over-Dunlop latex is what gave the buoyant contour we felt at the shoulders and hips, a springier support than memory foam, and the pocketed coils are why the hips stayed level on the back and why the bed stayed quiet when a second tester moved. The base layer steadies the coil unit. The latex-and-coil build is also why the Organica is heavier than the foam beds here, which is the tradeoff for the natural materials.

The Bear Star Hybrid earned its spot as a responsive, supportive fiberglass-free hybrid with GREENGUARD Gold and CertiPUR-US certified foams. Dr. Burns found the medium-firm surface kept his hips and shoulders in a flat line on his back, and the gel-infused comfort foam gave enough at the shoulders on his side without letting him sink far. Response off the pocketed coils was quick, so changing position did not feel like climbing out of a well. The tradeoff is the quilted top: its deep indentations are noticeable through sheets, and the surface reads firmer than a plush bed.

Best For:

– Back and combination sleepers who want a firmer, responsive surface
– Couples and plus-size sleepers who want coil support and firm edges
– Sleepers who prefer to sleep on top of a bed rather than sink in

Compare Instead:

– FORM Prime if you want zoned lumbar support and a stable grid surface
– Saatva Classic if you want an innerspring with a softer pillow-top option
– Nolah Evolution 15 if you want a plusher pillow-top with firmness choice

In testing, the Bear Star Hybrid paired a supportive coil core with medium-firm cushioning. Dr. Burns found the hybrid build made it quick to change position while keeping the spine in line, and partner movement stayed contained when a second tester moved on the far side.

The gel-infused comfort foam and breathable cover read cool to the touch on contact, and the foam layers conformed at the shoulders and hips to distribute pressure across side and back sleeping without slowing movement.

The Celliant cover fabric and the gel-infused Serene comfort foam under it are why the surface felt cool to the touch on contact and gave at the shoulders on the side without letting us sink far. The responsive transition foam is what kept the bed quick to change position, and the pocketed coil core is why the hips and shoulders stayed in a flat line on the back and why the edge held when we sat down. The foams are CertiPUR-US certified and the bed carries GREENGUARD Gold certification for low chemical emissions in indoor environments. The quilted top is also the reason the surface reads firmer, with indentations noticeable through sheets, which is the main feel tradeoff.

The Purple RestorePlus Hybrid earned Best Online for a grid-over-coil build, offered in Soft and Firm, with no fiberglass in the construction. Dr. Burns found the Purple Grid gave at the shoulders and hips where he pressed in and stayed firm everywhere else, so the surface adapted as he switched positions without a lag. On the Firm build his hips stayed level on his back; the Soft build gave more at the shoulder for side sleeping. Edge support held when he sat on the perimeter foam rails, and motion stayed contained when a second tester moved. The tradeoff is the grid feel itself, which reads firmer and more responsive than conforming foam and takes adjustment.

Best For:

– Side sleepers (Soft build) and back or stomach sleepers (Firm build)
– Couples who want motion isolation and firm edges
– Plus-size sleepers who want a supportive grid-and-coil surface

Compare Instead:

– FORM Prime if you want a more stable grid with zoned lumbar support
– Helix Midnight Luxe if you want conforming foam over a grid feel
– Amerisleep AS6 Black Series if you want a plush cooling hybrid instead

In testing, the Purple Grid provided a balance of firm support and adaptive give, adjusting quickly as Dr. Burns changed position without a lag, and partner movement stayed contained when a second tester moved. He found the foam edge rails held the perimeter when he sat down, keeping the full surface usable, and the open grid channels read more breathable to the touch than a solid foam top.

On the Firm build the hips stayed level for back and stomach sleeping; the Soft build gave more at the shoulder for the side.

The stretchy moisture-wicking cover is why the surface stayed fresh to the touch, and the Purple Grid under it is what gave at the shoulders and hips where we pressed in while staying firm everywhere else, which is why the bed adapted as we changed position without a lag. The transition foam below the grid is what smooths the handoff to the coils, and the pocketed coil core is why the hips stayed level on the Firm build and the surface responded quickly. The foam edge rails are the reason the perimeter held when we sat down. The open grid channels are also why the surface read more breathable than a solid foam top.