Best Mattress That Won’t Sag You Can Buy in 2024

The AS3 is not only designed to maximize durability but to maintain a fine balance between comfort and support. Side sleepers gently sink into the surface for pressure relief, but not so hard they bow into their mattress. Meanwhile, back sleepers are buoyed by the base foam and targeted support features.

Customers who bought the AS3 rave about the mattress not sagging. However, one noted the mattress was delivered with a sag. Here is what some had to say:

Holly: Ive had this bed for 4 years now. It is literally the same as when I bought it. It has held its shape so well. No sagging. My husband and I agree it was a great investment. I even bought one for my parents!

Jay: The bed came with a sag, the worst customer service I’ve ever dealt with. Would not recommend my experience to anyone. It has been months and I still do not have a resolution to this nightmare.

Bob: We use this mattress on our king size bed. It came in two units and we put a protective cover on it. We have not experienced any depression or sagging and find the bed very comfortable. I’m pleased with the purchase and would recommend your company without reservation.

The mattress cover of Refresh fabric does more than enable a lasting cool-to-the-touch feel. The minerals inside the fabric are thermoreactive, taking absorbed body heat and transforming it into infrared energy to promote greater recovery.

Under the AS3’s cover is 3 inches of Bio-Pur® foam. Compared to traditional memory foam, plant-based Bio-Pur® is significantly more durable mattressand springy. Standard memory foam sags and sinks easily, whereas Bio-Pur® maintains its structure easily while still being comfortable.

Next is Affinity transition foam, which contains HIVE® zoned technology. HIVE® is divided into five ergonomic zones around your head, shoulders, back, hips, and legs. The technology offers different levels of cushioning and support to evenly distribute your body weight and align the spine.

The AS3’s base is made from Bio-Core® foam. This high-density foam is resistant to forming sags, lumps, and indentations so you can use the beds for years.

What stands out about the Zoma Hybrid is its coolness and buoyancy, lifting a sleeper and keeping the surface from growing overly warm. What may not attract as much attention is the medium feel, simply because it suits so many sleep styles. The hybrid’s surface is conforming without feeling too soft, excellent for sleepers who enjoy responsiveness in a bed.

People who bought the Zoma Hybrid note the mattress will not sag after use, but some have noted some squeaking. Here is what they had to say:

Terry T: The mattress was super comfortable. We’ve had trouble with other brands of box mattresses sagging after only a few years.

McKayla B: I love the mattress, but the bed frame is not “silent” like promised unfortunately … it creaks and squeaks when I roll from one side to the other. Maybe it’s the slats? Other than that I am happy with my purchase.

Cynthia C: It is the most comfortable bed I’ve ever slept on. It has the perfect amount of cushion on top, but perfectly firm mattress to hold shape so it doesn’t sag.

The Zoma Hybrid features lots of the same features as the classic Zoma Mattress, including gel memory foam and Reactiv™ foam wrapped in an AirCloth cover, which draws heat and moisture away from the body to keep you cool.

The first layer is gel-infused memory foam. These gel infusions prevent heat retention while the memory foam gently cushions achy body parts.

Next is a layer of Reactiv™ transition foam, an adaptive material designed to prevent sinkage. It responds rapidly under your body both to relieve pressure and align your body while you sleep.

Pocketed coils add extra bounce and support to the Zoma Hybrid. This stops you from sinking into bed and feeling “trapped” while sleeping. Plus, air can flow through the space between the coils so the bed doesn’t get overly hot. The foam base helps protect the coils so your bed doesn’t sag for years! Like we said, even the best beds sag eventually.

The Vaya Hybrid has a feel designed to provide near-universal responsive comfort. The buoyancy of its coils makes changing positions and moving out bed simple tasks, with no unwanted sinkage that will keep you trapped in bed.

The foam top gives the Vaya Hybrid a welcome edge of softness and conforming cushion, with one consumer reviewer noting the mattress helped ease back trouble from a previous bed.

No complaints of sagging with the Vaya, but some notice the springs do not sit ideal on the mattress:

Dale H: We needed to replace an old queen size mattress in our guest room. Some who often would be using it sleep on a firm innerspring mattress at home, while others sleep on a softer memory foam topped mattress.

Catherine G: Customer service was superb, as is the mattress. I bought a twin for a guest room daybed and now it’s my family’s favorite nap spot.

Patricia E: My only complaint is that due to the thin mattress cover, the springs are very noticeable all around the sides of the bed. IMO, that gives the mattress an unfinished look compared to most other brands.

The Vaya Hybrid contains the same Vaya Comfort Foam as other Vaya beds.  It is a flexible material built to soothe pressure. It cushions your body without feeling overly soft or firm mattress. Vaya Comfort Foam near-instantly snaps back into shape when you get out of bed or switch positions.

What makes the Vaya Hybrid different from the classic Vaya Mattress is the pocketed coil support system it contains. The steel coils support your spine and isolate motion transfer, so if you share a bed, you won’t disturb your partner when moving in bed.

The base of the Vaya Hybrid is a thin, but firm foam that absorbs shock from the springs. This prevents the springs from wearing out and going soft, ultimately ensuring the bed won’t sag.

The first things you’ll notice about the Natural are its coolness and responsiveness. Both these attributes are thanks to the combination of latex and springs. Both latex foam and pocketed coils are breathable. That means the two of them work together to keep cool air flowing through your hybrid mattress.

Both of these materials are also incredibly responsive, so they combine to offer lots of pleasant bounce and fight body impressions.

Again, with many reviews, there are no Nolah sagging complaints, but many mention support:

Seth P: Heavy but quality. With around 150 lbs of organic cotton and latex please do not try to move this by yourself. I made that mistake. Luckily I had the perfect mattress to lay on to feel better. First week in years that I have had more than 8 hours of sleep.

Lynn P: This mattress is excellent! Supportive, firm, and soft in the right places, just enough bounce. Even the edge support is great. I like to dress on the side of the bed, and with my old mattress, I almost fell off.

Nora S: This mattress is fantastic. My husband has chronic back issues, and woke up feeling better than he had in months. I’ve also noticed that I have mysterious aches and pains far less often now that I have a mattress that gives me proper support.

The Natural has six layers. Layer one is the Global Organic Textile Standard (GOTS) certified cotton cover. Layer two is a sheet of GOTS-certified wool for fire resistance and extra pressure relief. Both of these layers are highly breathable to keep the mattress surface cool to the touch.

Layers three and four are each made of perforated Talalay latex foam layers. The comfort layer consists of highly contouring latex to offer pressure relief, while the transition layer sports firmer latex to add buoyancy and support to the comfort layer.

Layer five is the HDMaxTM pocketed coil support system. This support layer offers 25 percent more support than your average coil system. It also features three separate zones to offer ideal support to each area of your body. Underneath the coil system, you’ll find the sixth layer, a foundation of cotton and wool that adds stability and durability to the support core.

The AS5 Hybrid is meant to mimic the imagined feel of a cloud with plenty of added bounce. The mattress is quick to embrace all the bodies curves, but the surface is responsive and avoids feeling like a sinkhole as you settle in bed.

Too much sinkage is a common drawback of lower-quality soft mattresses, but the AS5 Hybrid has a pleasing lift that doesn’t take away from its plush cushion.

The AS5 has rave reviews, no dips or sags reported, quite the opposite:

LED0814: This mattress is by far the most comfortable one we’ve ever owned. It is plush but still supportive. I think the only thing to know is if you are sleeping right next to each other there is a little sinkage because it is so soft. We have a king so it’s not an issue, but something to be aware of if you choose a queen. Otherwise it’s perfection!

Andrea: I have had this mattress for almost 5 years now. Still fantastic and the best one I have owed. 2 adults and 2 dogs sleep on this mattress and still holding shape. No sagging or loss of shape

Marie: We have lived with this mattress for almost a year and a half. My 240 lb husband with back issues LOVES this bed. It is comfortable and soft while still being supportive and not sagging. I LOVE this bed as well.

The AS5 Hybrid features the same cover and Bio-Pur® memory as the AS3 model we mentioned earlier. But that’s where the similarities end.

The AS5 Hybrid’s transition layer is made with a little something called Active Flex. This latex-like material adds the needs buoyancy and flexibility to the AS5 Hybrid, ensuring you never feel stuck or unsupported while sleeping. This layer also ensures the AS5 Hybrid is a good option for heavier individuals.

As a hybrid bed, the AS5 Hybrid contains a pocketed coil support layer. Springy coils prevent sagging but also enhance spinal support and motion isolation. Better yet, Amerisleep adds extra-firm mattress coils on the side of the bed to prevent saggy edges. There’s a thin layer of foam beneath the coil unit to further stop sagging and wear.

The Classic retains the innerspring bounce that many sleepers have grown accustomed to while still making some needed upgrades. You’ll notice when you lie on this bed that it does bounce back under you, but it doesn’t transfer motion all over the sleeping surface. This is because the dual support core isolates motion.

You’ll also notice that the sleep surface does a much better job of following the curve of your body than a standard innerspring mattress. This is thanks, once again, to the dual support cores that add adaptability without sacrificing springiness.

Almost 80 people who bought the Saatva mentioned sagging, over 70 loved that there was none. here is what some had to say:

Huy L: It is skeptical to buy a mattress online. But no regret, I give 5 stars for this mattress… because it is very comfortable, no more sweat on the back,sleep longer, no sagging, my wife back pain is gone… just one word AWSOME! Thanks Saatva

Michelle: I really wanted to love this mattress. We knew that our king mattress would be a costly investment, so my husband did extensive research and was impressed with the good reviews. Within a year, it was sagging. Customer service was EXCELLENT. They were sure that it was a defect and quickly sent us a replacement.

Jay: It has been little more than a year since we purchased this for master bedroom. As suggested we have been turning it 180 degrees every 6 months. This mattress has provided great support for my back. My back pain in the morning is almost gone. It is very comfortable and has held up for more than a year without any sagsRead more about review stating Saatva Classic King Firm Mattress and Foundation or depressions. It is still as comfortable as the first day of using it.

The Classic kicks the contouring into high gear right off the bat with a plush, quilted Euro topper for added pressure relief. The Lumbar ZoneTM quilting adds more support to the middle of your body to help keep your spine aligned.

Underneath the Euro top, you’ll find a layer of high-density memory foam to push support up another notch and offer even more pressure relief all at the same time.

Next, you’ll find the first of two support cores. This first support layer is made of pocketed coils. These individually wrapped coils are what make this bed more adaptable and motion isolating than a regular innerspring mattress. This is because each coil can move independently of one another, making the whole support core more flexible.

The second support layer is what gives the Classic mattress its classic feel. This layer consists of an open-coil network just like that featured in standard spring mattresses. That’s why you don’t have to worry about sacrificing the innerspring feel. The Classic is an innerspring mattress and a hybrid mattress all in one.

Both the support cores are surrounded on all sides by a high-density edge support railing system. These rails not only increase stability throughout the whole mattress. They also up the durability as well! That’s why you can expect to get at least 15 years out of the classic.

This is a cooling mattress, so the first thing you’re going to notice is the cool-touch feel. Thanks to heat-wicking foams and fibers, that cool-touch feel will last all night long. So you don’t have to worry about waking up in a sweat.

However, this is also a memory foam bed. So it’s extremely contouring. You can expect it to take your shape in an instant to give you unbeatable pressure relief and adaptability. Yet it won’t take forever to bounce back into place, thanks to the Ghost Bounce layer.

Several reviewers have mentioned how good the GhostBed is for lack of sagging. Here are some of those reviews:

Chay S: I have the Ghost Lux king for a month now and it’s been amazing!! Let me tell you I’ve never slept more than 4 hrs a day but with this bed it was so comfortable and soft but firm where your body doesn’t sink in.

Jennifer P: Very comfortable mattress. Its contours to your body, and doesn’t sag. Would recommend to bed to anyone. Will be upgrading my sons bed once mine pays off.

Nancy P: Loving my ghost bed luxe mattress. My husband is a hot sleeper and loves the cool feel of the mattress top and I am not and it isn’t too cold for me. Perfect balance. We’ve had it for a month now and it has not began to sag or take on or shape at all. It stays feeling supportive no matter which position. I sleep in.

The GhostBed Luxe starts off with the freezing cold Ghost Ice fabric cover. As its name suggests, this fabric offers hot sleepers an icy blast to fight heat buildup and keep sweat at bay. The Ghost Ice fabric is aided by a layer of highly thermoconductive gel memory foam and a layer of cool burst fiber to ensure that cool-touch feel lasts for hours.

After the multilayered cover, you’ll find the even more cooling Ghost Ice layer and a thick comfort layer of gel memory foam. This cooling foam helps pull body heat even further away from you.

Beneath all these cooling layers sits the Ghost Bounce layer. This layer bounces like latex without all the allergy potential. This helps fight body impressions and ensure your bed bounces right back underneath you as soon as you move.

Finally, the Luxe boasts a layer of high-density foam to offer buoyancy and lift. This keeps you on top of the sleeping surface and ensures you won’t sink. It also means you can expect the Luxe to last a cool 25 years.

You’ll notice the buoyancy of this hybrid mattress the second you lie down. It starts with ultra-dense foam even in the comfort layer to make sure your body cannot sink no matter what. Don’t let the firm feel fool you, though. The Plus still offers plenty of pressure relief for tired joints and sore muscles.

The Plus also has plenty of bounce to go around. Thanks to the highly responsive coils and Helix Dynamic Foam, it can spring back as soon as you move. So you don’t have to deal with slow response time or body impressions.

While most reviews report no sagging, several users did report the mattress does indeed sag for some people:

Sindhu: I got this mattress in king size about 2 years ago and it already sags in the middle and causes neck and back pain. Won’t recommend because it’s not worth it.

Emily W: The edges were not firm at all, so as a person who had just had knee surgery and as a Read more about review stating Very disappointed after only 16 monthsheavier person I was very sensitive to having little support at the edge of the mattress (i specifically purchased the Plus for that reason). Within a few months it began to sag in the middle where I sleep and the sides of the mattress were starting to bulge out from the center (both sides). It is no longer comfortable

Lucy F: chose this mattress because your site recommended it for heavier people. I found that in just a couple of weeks, there is already a sagging area where I’ve slept. I’ve turned the mattress and it’s starting on that side, too. I’m not very impressed. I thought it would be better.

The Plus offers two cover options: a breathable TENCELTM cover or a thermoconductive GlacioTex cover. Either one of these covers can help keep you cool all night long.

Next, you’ll find the ultra-dense four-pound memory foam comfort layer. This high-density foam is designed for maximum buoyancy and a medium-firm feel. So you don’t have to worry about losing cushioning to get extra support.

Underneath the high-density comfort layer, you’ll find the Helix Dynamic foam. This dense latex alternative doesn’t just fight sinkage. It also offers lots of responsiveness to make sure your bed bounces back as soon as you move.

A layer of firm memory foam comes next. This firm foam provides ergonomic support to keep your spine aligned and prevent back pain. It also provides an additional buffer between you and the pocketed coil system below.

Speaking of pocketed coils, you’ve got a support core of extra-tall pocketed coils directly beneath the foam layers to offer even more support than a standard pocket coil system. This coil system is the ultimate safeguard against sinkage.

While the Organica is a medium feel mattress like many of our other sag-free mattress recommendations, it still feels distinct due to its materials. The cotton, wool, and latex naturally promote a cool feel that synthetic materials can have trouble matching without infusions or added air channels.

The buoyancy of the latex, paired with the coils bounce, also make the Organica hybrid mattress an easy mattress to move across. Sliding out of bed in the morning is a simple task with the Organica!

There are no reported complaints on the Organica for problems with it holding shape. Quite the opposite!

TAZ: Delivery was very quick and easy. We have had the mattress for several months now, and we are very happy with it! It’s holding its shape and is supportive and comfortable.

Mohammed: I love my Organica queen mattress. the quality to price ratio is unbelievable compared to similar products from other brands. I’ve been getting the best sleep of my life! I highly recommend this product.

GIEBS: Much more comfortable then a foam mattress, the latex gives us more support and easier to move around in.

The Organica is 13 inches thick and features a GOTS organic certified cotton cover. The first layer in the bed is 1 inch of New Zealand Joma Wool®, a cushiony material designed to stay cool while you sleep. With that, wool is also a natural flame barrier, meaning Amerisleep won’t have to use fiberglass or chemicals in the bed.

Under the wool is 3 inches of Talalay latex. It’s soft, like memory foam, yet still springy and a durable mattress. It snaps back into shape when you move or get out of bed to minimize sagging.

Amerisleep further ensures you don’t sink into bed with the pocketed coil layer. Each coil is wrapped in a thin fabric that minimizes wear, motion transfer, and squeaking. The layer closely supports your spine for the best possible comfort.

At the base of the Organica is 1 inch of Dunlop latex, a long-lasting material built to stop your bed from sagging.