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Bridget is a Certified Sleep Science Coach and the former senior commerce editor at Sleepopolis, where she did everything from test out mattresses to writing about how to fall asleep fast. You can also find her in videos on our YouTube channel. Bridget graduated magna cum laude from San Diego State University with a degree in journalism and a minor in English. Before joining the Sleepopolis team, she was a TV news reporter and worked in cities across the country. She loves spending time outdoors, checking out new restaurants, snuggling with her pets, and of course, getting some quality Zzz’s.
Sagging mattresses are the worst. If you’ve owned a mattress for longer than a few years, you’ve likely experienced this yourself — the dips, the trenches, the once springy foam layers laying dormant in your bed. But while some sagging may be inevitable, there are ways to prevent it from going overboard. How, you ask? Well, allow us to explain.
In this guide, we’re going to introduce you to some of the best mattresses that won’t sag. As you’ll notice throughout this review, all of these beds feature strong support layers that maximize the durability and stability of their structures. So, not only are these cuddly beauties sturdy, and not only are they comfortable, but they’re specifically built to stand the test of time.
Ready to see my picks? Then keep on reading below! And don’t forget to check out our methodology section at the end of this guide for a crash course on all the factors to consider when shopping for a no-sag mattress of your own.
Our Top Pick for the Best Mattresses That Won’t Sag
I chose the Helix Midnight Luxe as our top pick due to its high-quality foam layers, which help relive pressure, and its foundation of sturdy coils at the bottom.
What I Look For In The Best Mattresses That Won’t Sag
Edge Support
When looking for a mattress that won’t sag, one of the most important indicators of durability is edge support, or how strong the edges of your mattress are. I test the edge support of each bed by using a tape measure to measure how much the perimeter sinks when I sit or lie down on it.
Quality and Durability of Materials
The quality and durability of the materials in your mattress directly relate to whether or not it will sag. Because of this, I made sure to include mattresses in this list with high-quality materials that will help prevent sagging.
Pressure Relief
I used a pressure map test to see how much pressure each mattress puts on my body. For instance, if there’s low pressure buildup at the back, then I know it’s a good mattress for back pain.
We rate each mattress on a scale from 1 to 5 to reflect its overall quality. This number is comprised of individual scores from hands-on testing of materials, firmness, pressure relief, motion transfer, cooling, responsiveness, and more.
4.5
Helix
Helix Midnight Luxe Mattress
Medium-Soft Comfort
Cooling Pillow Top
Zoned Support
Hybrid
100 nights
Free shipping
Deal
Use code SLEEPOPOLIS27 and save 27% off sitewide See Details
Hybrid, combining foam and zoned support coils for a supportive feel.
Firmness
The Helix Midnight Luxe is a medium-soft to medium-firm bed in the brand’s luxury line of hybrids, coming in at a 6 out of 10 on our mattress firmness scale (1 is the softest and 10 is the firmest).
Price
$1,373–$2,873 (before any discounts)
Size
Twin, twin XL, full. queen, short queen, king, California king, RV king
Back Sleepers
The springs in the Helix Midnight Luxe should help back sleepers maintain a neutral posture.
Side Sleepers
The pillow top and layer of memory foam should give these folks plenty of softness and contouring.
Pros of the Helix Midnight Luxe
The luxury version of the standard Helix Midnight comes with a pillow top and Tencel cover.
The Midnight Luxe should sleep fairly cool, thanks to its airflow-promoting coils and breathable Tencel cover.
The springs give the Helix Midnight Luxe a good deal of bounce and responsiveness that should make it easy for combination sleepers to change. positions
Cons of the Helix Midnight Luxe
The softness of this mattress isn’t going to be an ideal fit for stomach sleepers. They’ll need something more supportive to keep their hips elevated and in line with their shoulders. See our best mattresses for stomach sleepers for more options.
Likewise, heavy sleepers over 250 pounds will likely need a firmer and more supportive mattress. They should look at our best mattresses for heavy people.
Shipping
Free shipping
Trial Period
100 nights
Warranty
10-year warranty
Returns
Free refunds after 30 days, as long as it’s still within the 100-night trial period.
Helix has a line of six hybrid mattresses, each with a different level of firmness. The Midnight is one of their medium models. It has enough contouring for side sleepers, but should still be supportive enough for back sleepers, as long as they don’t mind a softer bed. Learn more in our video review.
What our tester says:
“I like the Helix Midnight Luxe for back sleepers and side sleepers. The medium-soft to medium-firm feel should give these folks the right balance of comfort and support.” – Nichole Mondshein, lead reviewer and mattress tester
Helix Midnight Mattress Sleepopolis Scores
Poor
Average
Excellent
1
2
3
4
5
4
Materials
3.5
Motion Isolation
4
Support
4
Edge Support
4.5
Cooling
4.5
Responsiveness
4.5
Pressure Relief
3.5
Trial Period
3.5
Warranty
4
Value
Expert Opinion
As the luxury version of the Helix Midnight, the Helix Midnight Luxe adds zoned support and a cushy pillow-top to the top layer of memory foam. When lying down on it, sleepers should experience a good deal of pressure relief while still getting support from a layer of individually wrapped coils. The coils also help prevent the bed from sagging. It’s worth noting that the Luxe also has more cooling features than the standard version of the mattress.
Strong edge support, or how well a mattress holds up on the sides, is also extremely important for preventing sagging. Luckily, the Helix Midnight Luxe has solid results in this area and should keep side sleepers, back sleepers, and even couples satisfied.
What our tester says: “The Midnight Luxe is the brand’s luxury take on a medium-firm memory foam hybrid. I think its thick memory foam comfort layer offers plenty of pressure-relief and body contouring, while its zoned coil layer ensures you’re getting plenty of lumbar support.” – Bridget Chapman, senior product editor
What Customers Say
Customers seem to be really happy with the structural integrity of this mattress and its high-quality construction.
Highlights of the Helix Midnight Luxe Mattress
With low motion transfer, couples are unlikely to be disturbed by partners who toss and turn at night.
The medium-soft to medium-firm feel of this model should be comfortable and pressure relieving to both back and side sleepers.
This bed is super-bouncy and responsive, so combination sleepers should be able to easily switch sleeping positions throughout the night without getting stuck.
What to Keep In Mind About the Helix Midnight Luxe Mattress
This mattress isn’t firm enough to provide hip support for most stomach sleepers, and could cause their spine to be thrown off alignment. Check our picks for best firm mattress for better options.
This bed doesn’t provide the deep sinkage or slow-moving foam that you get in memory foam mattresses.
We rate each mattress on a scale from 1 to 5 to reflect its overall quality. This number is comprised of individual scores from hands-on testing of materials, firmness, pressure relief, motion transfer, cooling, responsiveness, and more.
4.6
Bear
Bear Elite Hybrid Mattress
Designed for Athletes
Soft Feel
Luxurious Foams
Hybrid mattress
120 nights
Free shipping
Summer Savings
Use code SUMMER and save 30% off sitewide See Details
As a luxury mattress with many special features, the Bear Elite Hybrid is priced higher. Budget shoppers may want to check out the best cheap mattresses
Shipping
Free Shipping
Trial Period
120 nights
Warranty
Lifetime warranty
Returns
If you return within the 120-night trial period, you can get a full refund.
The Bear Elite Hybrid uses foam and coils for a mix of support, cushioning, and cooling. While designed for athletes prioritizing wellness and recovery, sleepers of all activity levels can enjoy the many luxurious features. Enjoy zoned support for targeted relief, an “on top of” feel allowing for ease of movement, and cooling features throughout. For more information, watch our video review.
What our tester says:
“I’d recommend the Bear Elite Hybrid for most back and stomach sleepers.I think these sleepers will get the needed pressure relief and contouring around the lower back and hips. This mattress does a wonderful job at offering body contouring while still helping the sleeper stay elevated and lifted as well. The layers of foam should provide comfort while the coil system should offer lots of support.” – Nichole Mondshein, lead reviewer and mattress tester
Bear Elite Hybrid Mattress Sleepopolis Scores
Poor
Average
Excellent
1
2
3
4
5
5
Materials
4.5
Motion Isolation
4.5
Support
4.5
Edge Support
4.5
Cooling
4
Responsiveness
4.5
Pressure Relief
4
Trial Period
5
Warranty
4.5
Value
Expert Opinion
Hybrids are often a safe bet when looking for an anti-sagging mattress, as their layer of springs offers a lot of extra support. The Bear Elite Hybrid goes even further by having two sections of springs: a layer of sturdy pocketed coils, as well as smaller microcoils along the bed’s perimeter, which I found gives the mattress strong edge support.
Another benefit of the Bear Elite Hybrid’s coils is that they leave plenty of room for airflow, helping keep the sleeper cool. Other cooling features in this luxury hybrid include copper infusions in the foam and an optional cover made of an exceptionally cooling material called Celliant. When I tested out the bed, I not only felt lifted by its elaborate construction — I never felt like I was heating up.
What our tester says: “Not only is this mattress cool-to-the-touch but also feels very plush and offers optimal body contouring and pressure relief. Thanks to the coils, I felt like I was laying on top of the mattress and my body was supported rather than feeling as if I was sinking in.” – Nichole Mondshein, lead reviewer and staff writer
What Customers Say
The Elite Hybrid has a little over 3,700 reviews on the Bear website, and an average customer rating of 4.6 out of 5 stars. About 20 of the reviews call out the mattress’s cooling abilities, with some folks saying the bed pairs really well with cooling sheets.
Highlights of the Bear Elite Hybrid Mattress
Bear designs its mattresses with athletes in mind, and with an added fee shoppers can choose a Celliant cover. This technology is unique in that it’s meant to promote blood flow. While I haven’t tested the material’s recovery properties myself, you can read more about them in several clinical trials.
The Bear Elite Hybrid comes in three different firmness levels: Soft, Medium, and Firm. I tested the Medium model and found it to be on the softer side — a 6 out of 10 on our mattress firmness scale.
I think the Medium model is a good fit for back sleepers and side sleepers. It’s probably too soft for stomach sleepers, although they might be comfortable on the Firm model.
What to Keep In Mind About the Bear Elite Hybrid Mattress
As the brand’s luxury model, the Bear Elite Hybrid is on the pricier side, with a queen size coming in at over $2,200 before discounts. However, Bear often runs promotions and you can sometimes get a queen for closer to $1,500.
The Celliant cover that may help in muscle recovery and keeps things cool must be purchased separately for around $130.
We rate each mattress on a scale from 1 to 5 to reflect its overall quality. This number is comprised of individual scores from hands-on testing of materials, firmness, pressure relief, motion transfer, cooling, responsiveness, and more.
4.3
Nectar
Nectar Premier Mattress
Medium-Soft Feel
Cushioning Foam
Cooling Cover
Foam
365 nights
Free shipping
Summer Spectacular
Save up to 50% on mattresses + 66% on bundles See Details
Foam, for a soft, pressure-relieving feel and plenty of sinkage.
Firmness
This one scored 6 out of 10 on our scale, so we’d classify it as medium-soft.
Price
$1,480–$2,842 (before any discounts)
Size
Twin, twin XL, full, queen, king, California king, split king
Side Sleepers
Lightweight and average weight side sleepers may like the body contouring the Premier offers.
Back Sleepers
If you’re a back sleeper looking for better spinal alignment, you’ll find it with this mattress.
Hip Pain
The Premier should provide plenty of pressure relief for side and back sleepers with hip pain.
Pros of the Nectar Premier
Includes a thick, contouring comfort layer that helps alleviate joint pain.
Isolates motion well, making it great for couples.
It tested well for edge support, so you should be able to spread out across the mattress surface.
This mattress gets its support from a eight-inch layer of high-density poly foam.
Cons of the Nectar Premier
Stomach sleepers won’t get the support they need from the Nectar Premier.
Shipping
Free shipping
Trial Period
365 nights
Warranty
Lifetime warranty
Returns
Full refund after 30 days and within the 365-night trial period
The Nectar Premier is a luxurious all-foam mattress equipped with quality materials. A moisture-wicking cover and gel-infused comfort layer create a cooling, thermoregulating mattress for hot sleepers. Perhaps its strongest attribute is its next-level pressure relief. Six inches of foam work to contour sensitive areas, but the high-density foam at the bottom of the bed provides plenty of support. Watch our video review to learn more.
What our tester says:
“My favorite thing about the Nectar Premier is its great pressure relief. This medium-soft mattress is a great fit for side sleepers looking for plush comfort. It might also be a nice fit for sleepers who deal with shoulder pain.” – Nichole Mondshein, lead reviewer and staff writer
Nectar Premier Mattress Sleepopolis Scores
Poor
Average
Excellent
1
2
3
4
5
4
Materials
4.5
Motion Isolation
4.5
Support
4
Edge Support
4.5
Cooling
4
Responsiveness
4.5
Pressure Relief
5
Trial Period
5
Warranty
3.5
Value
Expert Opinion
The Nectar Premier is a pressure-relieving yet supportive bed with a thick therapeutic memory foam layer, with a cooling cover to help the whole mattress keep a low temperature. Additionally, a layer of dynamic response foam adds bounce to the mattress, preventing side sleepers from sinking too far into the bed while still offering them plenty of contouring. The materials of the Nectar — both comfortable and supportive — make it a fantastic option for side sleepers in need of pressure relief.
In order to ensure that we’re recommending the Nectar Premier for the correct sleeping positions, I put it through our pressure map test. During testing, I spread a specialized mat across a mattress’s surface and lie down on it in the back- and side-sleeping positions. The mat then sends us a color-coded graphic displaying areas of high, moderate, and low pressure. Areas with high pressure buildup light up with the colors red and orange. Moderate pressure is indicated with the color yellow, and lower pressure shows green and blue. The Nectar Premier gently cradles the shoulders and hips, and I don’t foresee it leaving sleepers with newfound aches and pains.
What our tester says: “I think side sleepers should really like this bed. It has a soft, pressure-relieving feel that should give them some much-needed contouring.” – Nichole Mondshein, lead reviewer and staff writer
What Customers Say
Shoppers of all ages compliment the Nectar Premier’s ability to lift pressure off of sensitive areas, from the shoulder to the back to the hip.
Highlights of the Nectar Premier Mattress
The Nectar Premier should also be comfortable for back sleepers, who should get the pressure relief they need at the lumbar region and the support they need for their spine to stay neutrally aligned.
This mattress has all of the sinkage, contouring, and pressure relief that a classic memory foam bed provides. It’s especially nice for people with shoulder or hip pain.
The sinkage from this mattress should help back and side sleepers find pressure relief as the mattress conforms to their bodies.
What to Keep In Mind About the Nectar Premier Mattress
Stomach sleepers need a firmer mattress to keep their shoulder and hips in line. The Nectar may cause stomach sleepers’ hips to sink too far into the mattress.
We rate each mattress on a scale from 1 to 5 to reflect its overall quality. This number is comprised of individual scores from hands-on testing of materials, firmness, pressure relief, motion transfer, cooling, responsiveness, and more.
4.5
Saatva
Saatva Classic
Multiple Firmnesses
Cooling Mattress
Strong Edge Support
Innerspring
365-night trial and lifetime warranty
Free white glove delivery
Limited Time Offer
Take $300 off your order of $1,000 or more See Details
Innerspring, for a bouncy mattress that’s easy to move around.
Firmness
Multiple firmness options. We tested the Luxury Firm model and scored it a 6.5 out of 10, meaning it’s the industry standard for medium firm.
Price
$935–$2,450 (before any discounts)
Size
Twin, twin XL, full, queen, king, California king, split king, split California king
Hot Sleepers
If you ever overheat while you sleep, this mattress should help you stay cool.
Back Pain
This bed is ideal for anyone suffering from back pain.
Back Sleeping
This mattress is ideal for back sleepers of all weights.
Stomach Sleeping
It’s also a nice option for lightweight and average weight stomach sleepers.
Pros of the Saatva
With three firmness options, most sleepers should find a Saatva model that works for them
The Saatva uses high-quality materials that will last you a long time
Its bouncy and responsive feel means it’s great for combination sleepers
The Saatva’s reinforced edges give it some of the best edge support we’ve ever seen
Cons of the Saatva
If you’re looking for lots of sinkage or amazing motion isolation, you’re better off with one of the best memory foam mattresses.
None of the Saatva Classic models will likely be supportive enough for heavy stomach sleepers. For these folks, we recommend the Saatva HD.
Shipping
Free white glove delivery
Trial Period
365 nights
Warranty
Lifetime warranty
Returns
Full refund within the 365-night trial period. Saatva charges a $99 pick-up fee
The Saatva’s coil-on-coil construction provides a classic innerspring feel. It’s a good option for combo sleepers, who will want to feel free to switch positions and avoid feeling “stuck” in the mattress. It comes in three firmness levels, so you should be able to find one that suits your needs. The white glove delivery Saatva provides is an added perk and will save you the headache of getting rid of your old mattress (they take it away for free!). For more information, watch our video review.
What our tester says:
“I think the Saatva is a great option for back sleepers, as the Luxury Firm model provides enough cushioning for their lumbar region, but also lots of support to keep their spine in a neutral alignment.” – Nichole Mondshein, lead reviewer and staff writer
Saatva Mattress Sleepopolis Scores
Poor
Average
Excellent
1
2
3
4
5
5
Materials
3
Motion Isolation
5
Support
5
Edge Support
4.5
Cooling
5
Responsiveness
4.5
Pressure Relief
5
Trial Period
5
Warranty
5
Value
Expert Opinion
In the market for a supportive innerspring mattress that won’t sag while you sleep? Consider the Saatva mattress. Made with a sturdy coil-on-coil construction, this bed is bouncy, and built for the long haul. Durability points aside, our favorite thing about the Saatva is how well it supports a neutral spine alignment. What this means for is that it lifts the hips in line with the shoulders, creating an even line across the body. This alignment not only makes it super-easy to move around and change positions, but also helps to alleviate tension at the joints and lower back. The Saatva comes in three different firmnesses, so you can really hone in on the comfort level that’s right for you. All in all, this is a well-made bed designed to withstand a lot of wear and tear.
I tested the Saatva’s edge support in our mattress lab, and found some of the best edge support we’ve seen. This wasn’t entirely surprising, as the Saatva uses two different coil layers as well as reinforced edges for support. I didn’t notice any sinkage at all on the Saatva, regardless if I was lying on it or sitting on it.
What our tester says: “I think back sleepers should enjoy the Saatva. The support of the coils should keep their back in a healthy neutral position, which can help combat back pain.” – Nichole Mondshein, lead reviewer and staff writer
What Customers Say
Customers were more than satisfied with Saatva’s customer service throughout the mattress buying process.
Highlights of the Saatva Mattress
This mattress provides tons of cushioning in the lumbar region while also adding spinal support, which is great for back sleepers.
The layers of coils in this innerspring mattress make it bouncy and responsive enough for combination sleepers to switch between different sleeping positions.
It’s available in three different firmnesses, so there’s something for every sleeping position. I recommend that side sleepers go for the Plush Soft, back sleepers opt for the Luxury Firm, and stomach sleepers choose the Firm.
What to Keep In Mind About the Saatva Mattress
Because this mattress has a traditional innerspring feel, it’s likely that you’ll be disturbed by any movement your partner makes throughout the night. If you sleep lightly, you may need a bed with better motion isolation.
We rate each mattress on a scale from 1 to 5 to reflect its overall quality. This number is comprised of individual scores from hands-on testing of materials, firmness, pressure relief, motion transfer, cooling, responsiveness, and more.
Hybrid, combining a plush pillow top with coils and foams for a luxury feel.
Firmness
Multiple firmness options: Softer, Luxury Firm, and Firmer. We tested the Luxury Firm and scored it a 7 out of 10, meaning it’s on the firmer side of medium-firm.
Price
$1,149–$2,049 (before any discounts)
Size
Twin, twin XL, full, queen, king, California king
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Back Pain
This bed is ideal for anyone suffering from back pain.
Back Sleeping
A great option for lightweight and average weight back sleepers.
Pros of the WinkBed
Back sleepers should get the support they need
It has a traditional, supportive feel
The WinkBed has cooling capabilities to help people who sleep hot
Sturdy edge support and good motion isolation make this a good choice for couples
The WinkBed is a luxury hybrid mattress. It has a similarly supportive and sturdy feel to a traditional innerspring mattress, but upgrades like a Euro top and cooling Tencel cover give it a touch of modern luxury. Available in three firmness levels, there is a WinkBed for just about every sleeper. And a responsive and bouncy feel makes it a great pick for combination sleepers. Learn more in our video review.
What our tester says:
“If you like the feel of a traditional innerspring mattress, the WinkBed could work for you. Since this bed offered great pressure relief around my lumbar region, I’d also recommend it to folks who suffer from lower back pain.” – Nichole Mondshein, lead reviewer and staff writer
WinkBed Mattress Sleepopolis Scores
Poor
Average
Excellent
1
2
3
4
5
4.5
Materials
4
Motion Isolation
4.5
Support
4
Value
4.5
Cooling
4
Responsiveness
4.5
Pressure Relief
4
Edge Support
4
Trial Period
5
Warranty
Expert Opinion
Hybrid mattresses can be fantastic options for folks in need of a durable structure, as they’re built with both foam and coils. This means they get the best of both worlds — cozy pressure relief up top and firm support below. Thankfully, there are a lot of hybrid models available on the market today, with one of my faves being the WinkBed mattress.
What sets this model apart is its super sturdy construction. While the pillow top itself is pleasantly plush, the rest of the bed is anything but. After sinking through the top layers of soft foam, you’ll land on a springy section of microcoils, which is quickly followed up by a tall system of pocketed coils. This results in a ton of bouncy support that brings some much needed heft and lift to the structure. Over time, these coils will also help to support the top layers of foam as they begin to naturally sag and change shape. This mattress also comes in four different firmness levels, including an option for plus-sized sleepers, so it can appeal to a wide variety of people.
To really make sure this mattress won’t sag, I put the WinkBed through our edge support test. This allows my to determine the strength of a mattress’s perimeter, which is often an indicator of durability. Sturdy edges allow folks to really spread out or sleep towards the edge of the mattress. To test this, I sat and laid down on the edges of the WinkBed to see just how much it collapses under my weight. To my satisfaction, the WinkBed showed impressive edge support. Because it has reinforced edges, I only saw a slight collapse, which is nothing to be worried about.
What our tester says: “I measured the bed before I sat on the edge, then measured it again while I was sitting on the edge. The bed’s top layer only sunk less than half of an inch. When taking this into consideration, I think the WinkBed offers strong edge support.” – Nichole Mondshein, lead reviewer and staff writer
What Customers Say
Many reviews take time to applaud the WinkBed’s ability to help relieve their back pain.
Highlights of the WinkBed Mattress
This mattress is designed to keep sleepers cool all night long, which is a great feature for those who sleep hot at night.
The WinkBed is bouncy and responsive, so combination sleepers should be able to easily switch between sleeping positions without getting caught in the mattress.
This bed is a good pick for those who enjoy the feel of an innerspring mattress. It’s super supportive and could really benefit those with lower back pain.
What to Keep In Mind About the WinkBed Mattress
This mattress may be too firm for side sleepers, who usually need a softer mattress to relieve pressure from their hips and shoulders.
The WinkBed isn’t the best choice if you’re looking to save money. But, it is often on sale, and it’s super durable, which makes it a good mattress for the money.
We rate each mattress on a scale from 1 to 5 to reflect its overall quality. This number is comprised of individual scores from hands-on testing of materials, firmness, pressure relief, motion transfer, cooling, responsiveness, and more.
4.3
Nolah
Nolah Natural Mattress
Medium-Soft
Cooling Mattress
Responsive and bouncy
Latex
120-night trial and lifetime warranty
Free Shipping
Sale (35% off!)
Use code SLEEPOPOLIS50 and save an additional See Details
The Nolah Natural is made with eco-friendly Talalay latex and supportive coils. This mattress has GOTS (Global Organic Textile Standard) organic wool, cotton, natural latex, and recycled steel. The latex makes this mattress responsive, which is great for couples and combination sleepers. This material is also naturally hypoallergenic and cooling, which can help hot sleepers prevent overheating. For more information, watch our video review.
What our tester says:
“It has a very soft, plush feel that provides you some cushioning as well. I’d say you’re going to feel more “on top” of this bed than “in it” — thanks to its bouncy latex.” – Bridget Chapman, former senior product editor.
Expert Opinion
If you struggle with allergies or are against certain materials, you may be interested in an organic mattress. These beds are typically made with all-natural materials and usually meet certain environmental standards during the manufacturing process. The Nolah Natural is made with two layers of Talalay latex, a naturally breathable and hypoallergenic material. The bed also contains an organic cotton cover and organic wool layer that’s soft and cooling. As a hybrid mattress, this bed also has a coiled layer at the bottom made from recycled steel.
The Nolah Natural is a durable mattress made with high-quality materials, which help keep it standing strong without sagging. I found the edge support on this bed to be excellent, largely due to the strong coil layer. I especially like this mattress for back and side sleepers. These folks should find some comforting pressure relief from the bouncy latex, but still feel supported and lifted by the support system below.
What Our Tester Says: ” This Nolah mattress has GOTS (Global Organic Textile Standard) certified organic wool, GOTS certified organic cotton, natural Talalay latex, and recycled steel. It’s free of harmful chemicals and substances.” – Bridget Chapman, former senior product editor
What Customers Say
Verified buyers seem to love the medium-soft feel of this bed and think it’s not too firm and not too soft.
Highlights of the Nolah Natural Mattress
The breathable latex foam and coils make this mattress a good choice for hot sleepers.
This mattress contains GOTS (Global Organic Textile Standard) certified materials that are eco-friendly and sustainable.
The bouncy latex and coils make it easy to move around on this bed, which combination sleepers can appreciate.
What to Keep In Mind About the Nolah Natural Mattress
I don’t think this mattress is firm enough for stomach sleepers, who may need a bit more support to keep their hips lifted and aligned with their shoulders.
This bed isn’t the best at isolating motion, so couples may be disturbed by each other’s movement at night.
We rate each mattress on a scale from 1 to 5 to reflect its overall quality. This number is comprised of individual scores from hands-on testing of materials, firmness, pressure relief, motion transfer, cooling, responsiveness, and more.
4.7
Brooklyn Bedding
Titan Plus
Firm, Supportive Feel
Built for Heavy People
Extra-Strong Coils
Hybrid
120 nights
Free shipping
Summer Sale
Use code SUMMER25 and save 25% off sitewide See Details
Brooklyn Bedding offers returns and exchanges with a $99 return fee
The Titan Plus mattress is a durable mattress made with heavy sleepers in mind. It’s firm and features heavy-duty coils and Titanflex foam that makes it bouncy and easy to move around on. We think that heavy back sleepers and stomach sleepers should be especially comfortable. For more information on the Titan Plus, check out our video review.
What our tester says:
“I think the Titan Plus lives up to its name as a good mattress for heavier sleepers. It will offer them the deep compression support and durability they need.” – Nichole Mondshein, lead reviewer and staff writer
Titan Plus Mattress Sleepopolis Scores
Poor
Average
Excellent
1
2
3
4
5
4.5
Materials
3.5
Motion Isolation
5
Support
4.5
Edge Support
4.5
Cooling
4.5
Responsiveness
4
Pressure Relief
4
Trial Period
3.5
Warranty
4.5
Value
Expert Opinion
The Brooklyn Bedding Titan is designed specifically for heavy people over 250 pounds, with extra-supportive touches such as responsive Titanflex foam in the comfort layer and an extra-tall layer of TitanCaliber-encased coils at the base. All of these materials work together to establish a 7.5/10 firmness that should appeal to heavier sleepers in all three sleeping positions. An added bonus of all this reinforcement is that the Titan is extra-durable, which means it should easily prevent sagging.
I had one of my friends, Paulie, come in and test the mattress. As a powerlifter, he fits the body type the Titan Plus was made for, and having someone like Paulie test the mattress was crucial for finessing our overall recommendation and opinion of this mattress. To Paulie, the mattress felt firm (a 7.5 out of 10 on our firmness scale) and supportive. But he could also feel contouring and pressure relief at his shoulders, as well as his lower back.
What our tester says: “I think the Titan Plus lives up to its name as a good mattress for heavier sleepers. It will offer them the deep compression support and durability they need.” – Nichole Mondshein, lead reviewer and staff writer
What Customers Say
With consideration of the mattress’s overall construction and material quality, reviewers comment on how the Titan Plus is a wonderful value buy.
Highlights of the Titan Plus Mattress
This mattress has enough firm support to keep the hips and shoulders of stomach sleepers in one straight line, which is ideal to avoid pain.
The responsiveness of the coils should make it easy for combination sleepers to move around and switch sleeping positions.
The space between the coils leaves plenty of room for airflow, which should be appealing to hot sleepers.
What to Keep In Mind About the Titan Plus Mattress
Side sleepers aren’t likely to have enough sinkage on this bed in order to relieve pressure on their hips and shoulders. Lightweight side sleepers may find they have an even harder time sinking in.
We rate each mattress on a scale from 1 to 5 to reflect its overall quality. This number is comprised of individual scores from hands-on testing of materials, firmness, pressure relief, motion transfer, cooling, responsiveness, and more.
4.3
Brooklyn Bedding
Brooklyn Bedding Plank Firm Mattress
Extra-Firm Feel
Flippable Design
Supportive Foams
Foam
120 nights
Free shipping
Summer Sale
Use code SUMMER25 and save 25% off sitewide See Details
The Plank Firm is a flippable mattress with a different firmness option on each side. We score firmest with 1 being the softest and 10 being the firmest, and the Plank Firm features a Firm side (7.5/10) and an Ultra Firm side (8.5/10).
Price
$749–$1,532 (before any discounts)
Size
Twin, twin XL, full, queen, king, California king, split California king, short full, short queen, Olympic queen, short king, RV king
Back pain
Support for those living with back pain.
Stomach Sleepers
Ideal for average weight and heavyweight stomach sleepers.
Back Sleepers
Ideal for average weight and heavyweight back sleepers.
Pros of the Plank Firm
The Plank Firm often appears on many of our roundups pertaining to spinal health and back pain.
This mattress is a good choice for couples; it scored 4 out 5 or more for motion isolation, edge support, and cooling.
The quality materials, from its firm cover to its high-density foams, make it an extremely durable option.
Cons of the Plank Firm
Side sleepers won’t receive the proper cushioning or contouring on the Plank Firm. They should look at our best mattresses for side sleepers
instead.
It’s not the best mattress for alleviating joint pain because of its firmer feel — take a look at our best soft mattresses
for alternative options
Shipping
Free within the contiguous US, but $125 for AK and HI
Trial Period
120 nights
Warranty
10-year warranty
Returns
There is a $99 return fee.
The Plank Firm more than lives up to its name with its ultra-sturdy foams and supportive feel. While this bed certainly isn’t for everyone, it should be an ideal fit for back sleepers, stomach sleepers, and combination sleepers who want to feel more on top of their mattress than in it. For more information, check out our video review.
What our tester says:
“I think the Plank Firm is one of the best mattresses for stomach sleepers. Both sides of the mattress, the firm side and extra firm side, should give these sleepers the support they need to keep their hips in line with their shoulders. Back sleepers who like a firmer feel should also be happy on the firm side of the Plank.” – Nichole Mondshein, lead reviewer and staff writer
Plank Firm Mattress Sleepopolis Scores
Poor
Average
Excellent
1
2
3
4
5
4
Materials
4
Motion Isolation
4.5
Support
4.5
Value
4
Cooling
4
Pressure Relief
4
Responsiveness
4.5
Edge Support
4
Trial Period
3.5
Warranty
Expert Opinion
A firm mattress is less likely to sag than a softer one, and when it comes to firm beds, you can’t get much firmer than the Plank. An all-foam bed created by Brooklyn Bedding, it’s unique both for how firm it is and for its flippable structure. One side of the mattress has a firm feel and the other side has an extra-firm feel.
I tested out both sides of the Plank Firm in our mattress lab, and found that this bed really does live up to its name. I gave the firm side a score of 7.5 out of 10 on our mattress firmness scale and the ultra-firm side an 8.5 out of 10. No matter which way you flip it, this is going to be a firm, sturdy, and supportive mattress.
What our tester says: “I think the Plank Firm is one of the best mattresses for stomach sleepers. Both sides of the mattress, the firm side and extra firm side, should give these sleepers the support they need to keep their hips in line with their shoulders.” – Nichole Mondshein, lead reviewer and staff writer
What Customers Say
There are currently almost 3,200 customer reviews on the Plank Firm’s website, and the mattress has an average rating of 4.8 out of 5 stars. Most of the reviews praise the bed for being as firm as advertised, although some folks say that they wish the edge was a little stronger. A soft edge is typical of all-foam mattresses.
Highlights of the Plank Firm Mattress
Back sleepers should be comfortable on the firm side. There’s a slight amount of cushioning for the lumbar region, and the dense foams should give them a good amount of spinal support.
I recommend that stomach sleepers go for the ultra-firm side. They need more support than any other sleeping position, and they should feel the foams lifting their hips and keeping them in line with the shoulders (this is key for maintaining a neutral spinal alignment).
Even though it’s a foam mattress with no springs, there’s enough responsiveness in the Plank Firm for combination sleepers to be able to easily switch sleeping positions.
What to Keep In Mind About the Plank Firm Mattress
The Plank Firm isn’t the best fit for side sleepers. Unlike back sleepers and stomach sleepers, they need a soft mattress that gives them lots of contouring at the shoulders and hips.
We rate each mattress on a scale from 1 to 5 to reflect its overall quality. This number is comprised of individual scores from hands-on testing of materials, firmness, pressure relief, motion transfer, cooling, responsiveness, and more.
4.1
Brooklyn Bedding
Brooklyn Bedding Signature Hybrid
Medium-Firm Comfort
Budget-Friendly
Responsive Coils
Hybrid
120 nights
Free shipping
Summer Sale
Use code SUMMER25 and save 25% off sitewide See Details
The Medium mattress is too firm for side sleepers
and too soft for stomach sleepers
(though the Soft or Firm model may work, respectively)
Shipping
Free shipping
Trial Period
120 Nights
Warranty
10-year warranty
Returns
Full refund within the 120-night trial. Brooklyn Bedding charges a $99 pick up fee
The Brooklyn Bedding Signature Hybrid mattress combines a foam comfort layer and sturdy coils. This combination of materials makes it bouncy and easy to move around on. It comes in three firmness levels, and we recommend the Medium model for most back sleepers. It’s a great choice for shoppers who are looking for a new mattress on a budget. For more information, check out our video review.
What our tester says:
“Given that the Signature Hybrid has some excellent bounce, I’d highly recommend this mattress for combination sleepers who often change positions multiple times throughout the night. I also think the Signature Hybrid could be a great fit for couples. You shouldn’t be overly disturbed by a restless partner on this bed, and it has nice, firm edge support.” – Nichole Mondshein, lead reviewer and staff writer
A mattress that doesn’t sag is more likely to give you spinal support, which is crucial for back sleepers. They’ll want a mattress that gives them enough pressure relief at the lumbar region while still giving them enough of a lift to promote a neutral alignment. They might find what they’re looking for in the Brooklyn Bedding Signature Hybrid — a simply constructed mattress with memory foam up top and individually encased coils at the bottom.
It’s available in three different firmness levels: Soft, Medium, and Firm. I tested out the Medium, and scored it 6.5 out of 10 on our mattress firmness scale (the industry standard for medium firm). While lying on my back, I got the pressure relief I needed at the lumbar and still felt propped up. To dig a little deeper into how the Signature Hybrid might work for back sleepers, I ran the mattress through our pressure map test, and the graphic lit up almost entirely blue in the back-sleeping position. This indicates almost no pressure buildup.
What our tester says: “I think back sleepers should feel comfortable and supported on the Signature Hybrid. Plus, this mattress should allow them to move around and switch positions with ease.” – Nichole Mondshein, lead reviewer and staff writer
What Customers Say
As one of Brooklyn Bedding’s older models, the Signature Hybrid has plenty of reviews on the brand’s website — nearly 11,000 as of this writing. Many of them say the bed is an ideal fit for back sleepers, with one verified buyer calling it “the greatest mattress I’ve ever owned.”
Highlights of the Brooklyn Bedding Signature Hybrid Mattress
The three different firmness levels mean there’s something for every sleeping position. I recommend the Medium for back sleepers, Soft for side sleepers, and Firm for stomach sleepers.
The Signature Hybrid is fairly affordable. You can usually get a queen size for under $1,000 after discounts.
I found this to be a fairly cooling mattress, thanks to its airflow-promoting coils. You can also add a cooling cover for an additional $150.
What to Keep In Mind About the Brooklyn Bedding Signature Hybrid Mattress
There aren’t a ton of bells and whistles on this bed, so if you want something more extravagant, I recommend looking at our list of the best luxury mattresses.
We rate each mattress on a scale from 1 to 5 to reflect its overall quality. This number is comprised of individual scores from hands-on testing of materials, firmness, pressure relief, motion transfer, cooling, responsiveness, and more.
4.5
Birch
Birch Natural Mattress
Firm Mattress
Organic
Cooling
Latex Hybrid
100-night Trial and 10-year Warranty
Free Shipping
Deal
Use code SLEEPOPOLIS27 and save 27% off sitewide See Details
The Birch Natural is a latex mattress utilizing individually wrapped coils for added support. This mattress specializes in cooling and responsiveness, and the firmer nature suits back and stomach sleepers well. Perhaps the most special part about this mattress is the material quality. Not only is the Birch organic, but it has also earned multiple certifications for safe production and materials. For more information, check out our video review.
What our tester says:
“One of my favorite things about the Birch is how cooling it is. I think any hot sleeper will be satisfied by this breathable bed. It’s definitely one of the most cooling mattresses available thanks to its wool and latex layers. These cooling materials also make it one of my favorite organic mattresses.” – Madison Schaper, Sleepopolis staff writer
Birch Natural Mattress Sleepopolis Scores
Poor
Average
Excellent
1
2
3
4
5
4.5
Materials
3.5
Motion Isolation
4.5
Support
4
Value
4
Cooling
4
Pressure Relief
5
Responsiveness
3.5
Edge Support
3.5
Trial Period
5
Warranty
Expert Opinion
Combination sleepers are people who switch between different sleeping positions at night. The biggest challenge for these sleepers is the lack of responsiveness some mattresses have, which makes it harder to easily switch positions. Combination sleepers sometimes struggle with memory foam mattresses, as the deep sinkage causes them to become trapped in the layers instead of allowing them to effortlessly roll around.
I chose the Birch mattress as the best mattress for combination sleepers because it has latex foam and springs that are responsive and bouncy. Combination sleepers should find themselves lifted and supported on this bed, which helps with mobility. I also think the Birch is compatible with stomach and back sleepers and should help with spinal alignment.
What Our Testers Say: “If you sleep on your back or stomach, the Birch could help relieve some pain in the hip and/or shoulder area.” – Madison Schaper, former staff writer
What Customers Say
Customers are a big fan of this mattress’s materials, and like that they can sleep on an organic surface while still being comfortable.
Highlights of the Birch Mattress
This mattress sleeps pretty cool, and I think it could be a good pick for hot sleepers.
Back and stomach sleepers should appreciate this bed’s medium-firm feel that leans a bit more firm.
Organic shoppers should be pleased with this bed’s eco-friendly construction.
What to Keep In Mind About the Birch Mattress
This bed doesn’t isolate motion well, and couples may struggle with feeling each other tossing and turning at night.
I don’t think this mattress is soft enough for strict side sleepers who may need a bed with more cushioning and sinkage.
What are the Concerns of Having a Mattress that Sags?
“A sagging mattress can lead to spinal misalignment which might cause increased discomfort in your back, hips and neck. A mattress that sags typically also has less support potentially shortening its lifespan. A mattress with strong durability and support will greatly help with pressure relief and will help couples make use of the full mattress on an even surface.”
Dr. Raj Dasgupta,
MD, FACP, FCCP, FAASM. Quadruple-board certified in pulmonary, sleep, internal, and critical care medicine
What to Consider When Buying a Mattress That Won’t Sag
Materials
Taking a closer look at the different mattress materials.
First and foremost, you’ll want to think about the materials at play. This may seem an obvious starting point, but you’d be surprised how much easier your search will be once you understand how certain common mattress materials respond to pressure over time.
For instance, poly foam is not going to be nearly as durable as memory foam, which, in turn, isn’t likely to last as long as high-density poly foam or latex. And though both pocketed coils and steel springs bring a lot of heft to a structure, steel coils typically last longer than individually wrapped (or pocketed) coils.
Firmness
When testing mattresses, I use our firmness scale that rates each mattress from 1–10, 1 being the softest and 10 being the firmest mattress I have ever tested. What firmness you go for should be based on your sleeping preferences and your sleeping position. If you’re a side sleeper, I recommend you for a softer mattress that gives you relief in your shoulders and hips without creating any pressure points. If you are a stomach sleeper, you’re going to need a firmer mattress that keeps your hips elevated and supported keeping your spine aligned.
Back and Combination sleepers have the most flexibility and should aim for a true medium-firm (6.5) mattress for maximum comfort. Firmness is not directly to a mattress sagging. Even if you opt for a softer bed, it should not sag faster than a firm bed.
Sleepopolis firmness scale.
Support & Spinal Alignment
While better understanding the materials themselves is important, it’s also crucial to consider how the materials are combined within a mattress. When it comes to preventing sagging, the key here is to focus on the support layers.
When we think about support, we’re thinking about the foundational layers of the mattress. Typically made of either pocketed coils or high-density poly foam, these sections are meant to stabilize the structure and provide support to both the sleeper and the softer comfort layers above it. In the case of sagging, a strong foundation will ensure that any changes to said comfort layers won’t dramatically alter the feel of the mattress.
In my opinion, pocketed coils and steel springs make the most supportive foundations. So, if durability is a major consideration for you, we’d recommend sticking with either a traditional innerspring mattress or a hybrid mattress made of both foam and coils.
Pressure Relief
Pressure Relief relates to the amount of ease you feel in the heavier parts of your body such as your hips, shoulders, and back throughout the night. Over time, the pressure relief can worsen in a mattress due to natural sagging, so in this list, I’ve prioritized mattresses that have durable, pressure relieving materials. I test each mattress for pressure relief in the studio using a thermal pressure map.
This pressure map is able to tell us what pressure points a mattress will have and where you will feel the most supported. I often see pressure points around the heavier parts of your body like your hips, shoulders, back and neck. The blue and green tells us the mattress is supporting the body well and the yellow and red are pressure points that someone would struggle with when laying on the mattress.
Flippability
If you’re really concerned about sagging, you may want to go with a flippable mattress. There are more and more flippable models available on the market all the time, and they can be great options for folks who want to extend the life of their mattress.
And the reason why is quite simple — if you notice any sagging or dips in your mattress, you can easily flip the bed over to get a fresh feel. Though it may feel a bit laborious, oscillating between the two sides can help prevent any one part of your bed from getting too worn down.
It’s important to note that not all mattresses are flippable. But, if you want to achieve a similar vibe, you can always rotate your mattress every few months to even out the sagging across the surface.
Edge Support
Edge support refers to the strength of the edges of your mattress. This is particularly important for seniors, heavy sleepers, anyone with chronic pain or anyone that just might need some extra support getting out of bed. I personally love having good edge support so my partner and I can be at opposite sides of the bed and not roll off.
I test for edge support by sitting or laying at the edge of the mattress and using a yard stick to measure the depth of sinkage experienced. More than a 5 inch sink is not considered good edge support. Make sure to look out for terms like “reinforced edges” or “superior edges”. When a mattress starts to sag, edge support is one of the first factors to go, so all the mattresses in this list performed great in edge support so you don’t have this worry.
Nichole conducting the yardstick test on the Novaform ComfortGrande Advanced Gel Memory Foam mattress.
How to Extend the Lifespan of your Mattress
Rotate the mattress every 6 months
Deep clean it once a year and spot clean regularly
Invest in a mattress pad or protector to create a bacteria barrier
Wash your sheets every week or bi-weekly
Replace your mattress every 6-8 years
Warranty
You’ll also want to consider the warranty on your mattress. While most brands provide some sort of limited coverage, the extent to which your mattress can get replaced varies widely across the market. So, make sure to read the fine print to see what exactly is covered.
If your mattress happens to come with a robust warranty, this will extend its longevity well into the future. Though a great warranty may or may not be a selling point for you, it can help alleviate worries about “sagging” or general wear and tear.
Signs it’s Time to Replace Your Mattress
You start feeling any extreme pain
Your mattress starts to visibly sag
If you see any lumps in the mattress
You sleep super hot even in a cool room
If it’s had over 8 years of regular sleep
FAQs
What types of mattresses are less likely to sag?
A mattress with at least one layer of springs in its construction (so, a hybrid or an innerspring) is going to be less likely to sag than an all-foam mattress. That being said, there are some firmer foam beds made with denser foams that should last a good long while.
How long should a mattress last without sagging?
A high-quality mattress with springs should be able to last 7 to 10 years without sagging, although some — especially ones built with reinforced materials — may last much longer. A high-quality foam mattress should last between 5 and 7 years.
How do I keep my mattress from sagging?
The best way to prevent your mattress from sagging is making sure you’re buying a high-quality bed. But there are also several tricks that can elongate the life of your mattress, such as rotating it, keeping it on a sturdy bed frame or other type of foundation, or adding a firm mattress topper.
How We Chose These Mattresses
We’ve reviewed more than 300 products in our mattress lab, running each one through tests such as pressure-mapping and measuring motion transfer with a seismometer. From there, we give every bed an overall score based on materials, comfort, support, cooling, and edge support. We also factor in brand performance with categories such as value and warranty.
For a durable mattress, the quality of materials and the level of support serve as two of the most important factors. All of the mattresses that we selected for this roundup scored at least a 4 out of 5 for materials, and 4 out of 5 for support. Click here to learn more about our methodology or jump back to our mattress picks.
Bridget is a Certified Sleep Science Coach and senior editor here at Sleepopolis. From testing mattresses to writing about various sleep health topics, her goal is to help you get a good night’s sleep. You can also find her in videos on our YouTube channel. Bridget graduated magna cum laude from San Diego State University with a degree in journalism and a minor in English. Before joining the Sleepopolis team, she was a TV news reporter and worked in cities across the country. She loves spending time outdoors, checking out new restaurants, snuggling with her pets, and of course — getting some quality Zzz’s.
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Dr. Raj Dasgupta, MD, FACP, FCCP, FAASM. Quadruple-board certified in pulmonary, sleep, internal, and critical care medicine
