Mattresses are a major investment. After spending hard-earned money, people want to trust that theirs is going to last. That’s why it’s so discouraging when the mattress starts to sag. (Pro tip: If you currently have a sagging mattress, check your mattress warranty to see if sagging is covered.) However, not all mattresses will give up so quickly. After testing and analyzing numerous beds, I’ve found the best 10 mattresses that won’t sag. These beds are not only durable but also high-quality!
Our Top Picks
The best mattresses that won’t sag are:
- Helix Plus – Best Firm Mattress That Won’t Sag
- Brooklyn Bedding Signature Hybrid – Best Mattress Under $1,000 That Won’t Sag
- Plank Firm – Best Extra-Firm Mattress That Won’t Sag
- Saatva HD – Best Mattress For Heavy People That Won’t Sag
- Nectar – Best Foam Mattress That Won’t Sag
- Bear Star Hybrid – Best Hybrid Mattress That Won’t Sag
- Helix Dawn – Best Mattress For Back Pain
- WinkBeds Plus – Best Mattress for Heavy People
- Nolah Natural – Best Organic Mattress That Won’t Sag
- Birch – Best Mattress for Stomach Sleepers
Video Review: Best Mattresses that Won’t Sag
How We Chose Our Products
Our team of sleep specialists have reviewed more than 150 mattresses, using proprietary analysis and hands-on testing to establish easy-to-understand scores. In addition to an overall score, we measure subscores for support, edge support, cooling, motion transfer, durability, trial period, and warranty.
Because a longer-lasting mattress is less likely to sag, we paid extra-close attention to the category of durability for this roundup. All of the 10 beds on this list scored at least a 3.5 out of 5 or higher on durability.
Helix Plus Mattress
The Helix PLUS is a supportive hybrid that could be a great match for heavier sleepers.Â
Material
Hybrid
Trial Period
100 nights
Shipping Method
Free shipping
Firmness
Firm: 7.5/10
Warranty
15-year warranty
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Back Sleeping
Ideal for lightweight, average weight, and heavyweight back sleepers.
Side Sleeping
Ideal for lightweight and average weight side sleepers.
Stomach Sleeping
Ideal for lightweight and heavyweight stomach sleepers.Financing Options
Financing options are available for this mattress.
Helix Plus Mattress
The Helix PLUS is a supportive hybrid that could be a great match for heavier sleepers.Â
Material
Hybrid
Warranty
15-year warranty
Firmness
Firm: 7.5/10
Shipping Method
Free shipping
Trial Period
100 nights
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Back Sleeping
Ideal for lightweight, average weight, and heavyweight back sleepers.
Side Sleeping
Ideal for lightweight and average weight side sleepers.
Stomach Sleeping
Ideal for lightweight and heavyweight stomach sleepers.Financing Options
Financing options are available for this mattress.
Helix Plus Mattress
The Helix PLUS is a supportive hybrid that could be a great match for heavier sleepers.Â
Material
Hybrid
Firmness
Firm: 7.5/10
Trial Period
100 nights
Warranty
15-year warranty
Shipping Method
Free shipping
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Back Sleeping
Ideal for lightweight, average weight, and heavyweight back sleepers.
Side Sleeping
Ideal for lightweight and average weight side sleepers.
Stomach Sleeping
Ideal for lightweight and heavyweight stomach sleepers.Financing Options
Financing options are available for this mattress.
If you want a mattress that won’t sag too quickly, a firm mattress is a good place to start. The Helix Plus is made for heavy people and is one of the firmest mattresses on this list. We ranked the mattress at a 7.5/10 for firmness, which is definitely firmer-than-average. The Helix Plus features durable materials designed to withstand and support heavier weights. Whether you are heavier or not, this firm mattress should give you a great amount of support and should last for a number of years.
What Makes The Helix Plus Stand Out?
- The Helix Plus is one of the best mattresses for heavy people.
- The mattress is a good fit if you like sleeping on top of your mattress.
- The Helix Plus is a great long-term investment.
Read our full Helix Plus mattress review to learn more. If you aren’t interested in the Helix Plus mattress, check out our list of the best firm mattresses for more great options!
Brooklyn Bedding Signature Hybrid Mattress
Brooklyn Bedding has amazing products that are sold at very affordable prices. This mattress is extremely high-quality and a great option for combination sleepers.
Material
Hybrid
Trial Period
120 nights
Shipping Method
Free shipping
Firmness
Multiple firmness options
Warranty
10-year warranty
Price Range
$$$$$
Brooklyn Bedding Signature Hybrid Mattress
Brooklyn Bedding has amazing products that are sold at very affordable prices. This mattress is extremely high-quality and a great option for combination sleepers.
Material
Hybrid
Warranty
10-year warranty
Firmness
Multiple firmness options
Shipping Method
Free shipping
Trial Period
120 nights
Price Range
$$$$$
Brooklyn Bedding Signature Hybrid Mattress
Brooklyn Bedding has amazing products that are sold at very affordable prices. This mattress is extremely high-quality and a great option for combination sleepers.
Material
Hybrid
Firmness
Multiple firmness options
Trial Period
120 nights
Warranty
10-year warranty
Shipping Method
Free shipping
Price Range
$$$$$
When you’re shopping for a mattress that won’t sag, you might find yourself paying more for the materials. But if you want a durable mattress that won’t cost you an arm and a leg, check out the Brooklyn Bedding Signature Hybrid mattress. Unlike many mattress brands, Brooklyn Bedding owns their own factory, allowing them to pass the savings onto the consumer.
What Makes The Brooklyn Bedding Stand Out?
- You can expect the Signature Hybrid to last for a number of years. This is because it features TitanFlex and Energex foam, as well as Ascension Coils (all durable materials).
- The Brooklyn Bedding comes in three different firmness levels, allowing you to find the perfect fit for you.
- The mattress is breathable and a good fit for hot sleepers.
Read our full Brooklyn Bedding Signature Hybrid mattress review to learn more. If you aren’t interested in the Brooklyn Bedding mattress, check out our list of the best mattresses under $1000 for more great options!
Brooklyn Bedding Plank Firm Mattress
The Plank Firm is a very firm mattress that is a great match for stomach sleepers and those who need extra support.
Material
Foam
Trial Period
120 nights
Shipping Method
Free shipping
Firmness
Firm: 8/10
Warranty
10-year warranty
Price Range
$$$$$
Brooklyn Bedding Plank Firm Mattress
The Plank Firm is a very firm mattress that is a great match for stomach sleepers and those who need extra support.
Material
Foam
Warranty
10-year warranty
Firmness
Firm: 8/10
Shipping Method
Free shipping
Trial Period
120 nights
Price Range
$$$$$
Brooklyn Bedding Plank Firm Mattress
The Plank Firm is a very firm mattress that is a great match for stomach sleepers and those who need extra support.
Material
Foam
Firmness
Firm: 8/10
Trial Period
120 nights
Warranty
10-year warranty
Shipping Method
Free shipping
Price Range
$$$$$
It’s called the Plank for a reason. This bed from Brooklyn Bedding comes with both a firm side and an extra-firm side. The former scored an 8 out of 10 on our mattress firmness scale, and the latter scored a 9 out of 10. To give you some context, a 1 would be like lying on a giant marshmallow and a 10 would be like lying on a board. So the Plank Firm is for folks who want a firm and supportive mattress that will keep them lifted and help their spine stay in a neutral alignment.
What Makes The Plank Firm Stand Out?
- Despite being one of the firmest mattresses out there, the Plank is made entirely of foam.
- Due to its firmness, this mattress is going to appeal most to stomach sleepers and back sleepers who prefer an extra-firm feel.
- For an additional charge, you can outfit the mattress with a cooling panel that should keep you from sleeping too hot.
Read our full Plank Firm mattress review to learn more. If you aren’t interested in the Plank Firm mattress, check out our list of the best extra firm mattresses for more great options!Â
Saatva HD Mattress
The Saatva HD is a supportive mattress made specifically for larger people.
Material
Hybrid
Trial Period
365 nights
Shipping Method
Free white glove delivery
Firmness
Firm: 8/10
Warranty
Lifetime warranty
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Back Pain
This bed is perfect for anyone suffering from back pain.
Back Sleeping
Ideal for average weight and heavyweight back sleepers.
Side Sleeping
Ideal for heavyweight side sleepers.
Stomach Sleeping
Ideal for average weight and heavyweight stomach sleepers.Financing Options
Financing options are available for this mattress.
Saatva HD Mattress
The Saatva HD is a supportive mattress made specifically for larger people.
Material
Hybrid
Warranty
Lifetime warranty
Firmness
Firm: 8/10
Shipping Method
Free white glove delivery
Trial Period
365 nights
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Back Pain
This bed is perfect for anyone suffering from back pain.
Back Sleeping
Ideal for average weight and heavyweight back sleepers.
Side Sleeping
Ideal for heavyweight side sleepers.
Stomach Sleeping
Ideal for average weight and heavyweight stomach sleepers.Financing Options
Financing options are available for this mattress.
Saatva HD Mattress
The Saatva HD is a supportive mattress made specifically for larger people.
Material
Hybrid
Firmness
Firm: 8/10
Trial Period
365 nights
Warranty
Lifetime warranty
Shipping Method
Free white glove delivery
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Back Pain
This bed is perfect for anyone suffering from back pain.
Back Sleeping
Ideal for average weight and heavyweight back sleepers.
Side Sleeping
Ideal for heavyweight side sleepers.
Stomach Sleeping
Ideal for average weight and heavyweight stomach sleepers.Financing Options
Financing options are available for this mattress.
The Saatva HD was designed with larger sleepers in mind. We named it one of the best mattresses for heavy people! It has a plush pillow-top followed by a layer of zoned latex foam. This means it feels firmer in some areas and softer in others. For support, there’s a layer of thick foam and 12.5 gauge tempered steel coils. In addition to creating excellent edge support, these springs give folks a luxurious sleep experience.
What Makes The Saatva HD Stand Out?
- This mattress has a firm, hybrid feel that’s best suited for heavier back, side, and stomach sleepers. However, some average-weight stomach sleepers may also find that it’s a good match.
- The zoned latex layer and durable steel coils create a great balance of comfort and support.
- When you shop with Saatva, the company offers free white glove delivery and a 180-night sleep trial period.
Read our full Saatva HD mattress review to learn more. If you aren’t interested in the Saatva HD mattress, check out our list of the best mattresses for heavy people for more great options!
Nectar Mattress
Nectar is a very comfortable memory foam mattress that happens to also be an amazing value.
Material
Foam
Trial Period
365 nights
Shipping Method
Free shipping
Firmness
Medium-firm: 6.5/10
Warranty
Lifetime warranty
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Joint Pain
This bed is perfect for anyone suffering from joint pain.
Hip Pain
This bed is perfect for anyone suffering from hip pain.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Side Sleeping
Ideal for lightweight and average weight side sleepers.Financing Options
Financing options are available for this mattress.
Nectar Mattress
Nectar is a very comfortable memory foam mattress that happens to also be an amazing value.
Material
Foam
Warranty
Lifetime warranty
Firmness
Medium-firm: 6.5/10
Shipping Method
Free shipping
Trial Period
365 nights
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Joint Pain
This bed is perfect for anyone suffering from joint pain.
Hip Pain
This bed is perfect for anyone suffering from hip pain.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Side Sleeping
Ideal for lightweight and average weight side sleepers.Financing Options
Financing options are available for this mattress.
Nectar Mattress
Nectar is a very comfortable memory foam mattress that happens to also be an amazing value.
Material
Foam
Firmness
Medium-firm: 6.5/10
Trial Period
365 nights
Warranty
Lifetime warranty
Shipping Method
Free shipping
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Joint Pain
This bed is perfect for anyone suffering from joint pain.
Hip Pain
This bed is perfect for anyone suffering from hip pain.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Side Sleeping
Ideal for lightweight and average weight side sleepers.Financing Options
Financing options are available for this mattress.
When many people shop for a soft memory foam mattress, they fear that it will sag after only a few short years. While the Nectar is a soft, comfortable memory foam mattress, shoppers can rest assured that it will hold up for quite some time. That’s because the Nectar features high-density foams in its construction.
What Makes The Nectar Stand Out?
- The bed has gel-infused memory foam, Hi Core memory foam, and base support foam, all of which should stand up to many years of constant use.
- The top memory foam layers should provide excellent pressure relief and contouring for side sleepers and back sleepers.
- Currently priced at under $1,000, the Nectar is one of the best value mattresses out there.
Read our full Nectar mattress review to learn more. If you aren’t interested in the Nectar mattress, check out our list of the best memory foam mattresses for more great options!Â
Bear Star Hybrid Mattress
The Bear Star Hybrid has a great balance of comfort and support. It is a great match for back and side sleepers.
Material
Hybrid
Trial Period
120 nights
Shipping Method
Free shipping
Firmness
Medium-firm: 6.5/10
Warranty
Lifetime warranty
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Joint Pain
This bed is perfect for anyone suffering from joint pain.
Back Sleeping
Ideal for lightweight back sleepers.
Side Sleeping
Ideal for average weight side sleepers.Financing Options
Financing options are available for this mattress.
Bear Star Hybrid Mattress
The Bear Star Hybrid has a great balance of comfort and support. It is a great match for back and side sleepers.
Material
Hybrid
Warranty
Lifetime warranty
Firmness
Medium-firm: 6.5/10
Shipping Method
Free shipping
Trial Period
120 nights
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Joint Pain
This bed is perfect for anyone suffering from joint pain.
Back Sleeping
Ideal for lightweight back sleepers.
Side Sleeping
Ideal for average weight side sleepers.Financing Options
Financing options are available for this mattress.
Bear Star Hybrid Mattress
The Bear Star Hybrid has a great balance of comfort and support. It is a great match for back and side sleepers.
Material
Hybrid
Firmness
Medium-firm: 6.5/10
Trial Period
120 nights
Warranty
Lifetime warranty
Shipping Method
Free shipping
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Joint Pain
This bed is perfect for anyone suffering from joint pain.
Back Sleeping
Ideal for lightweight back sleepers.
Side Sleeping
Ideal for average weight side sleepers.Financing Options
Financing options are available for this mattress.
Hybrid mattresses are usually a great option if you want something that won’t sag. One of our favorites is the Bear Star Hybrid. First off, it contains individually-wrapped coils that should last for a number of years without sagging. Second, the top foam layers are high-density and shouldn’t lose their shape too quickly. Being a hybrid, the Bear Star Hybrid has a balance of comfort and support and should work for all three sleeping positions.
What Makes The Bear Star Hybrid Stand Out?
- The Bear Star Hybrid is one of the best mattresses under $2,000.
- This mattress is breathable and is a good cooling option.
- The Bear Star Hybrid is responsive and makes moving around very easy.
Read the full Bear Star Hybrid mattress review to learn more. If you aren’t interested in the Bear Star Hybrid mattress, check out our list of the best hybrid mattresses for more great options!Â
Helix Dawn Mattress
The Helix Dawn is one of the company's firmest models. Because of this, it should be a supportive option for stomach sleepers.
Material
Hybrid
Trial Period
100 nights
Shipping Method
Free shipping
Firmness
Firm: 7.5/10
Warranty
10-year warranty
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
Back Sleeping
Ideal for average weight back sleepers.
Stomach Sleeping
Ideal for lightweight and average weight stomach sleepers.Financing Options
Financing options are available for this mattress.
Helix Dawn Mattress
The Helix Dawn is one of the company's firmest models. Because of this, it should be a supportive option for stomach sleepers.
Material
Hybrid
Warranty
10-year warranty
Firmness
Firm: 7.5/10
Shipping Method
Free shipping
Trial Period
100 nights
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
Back Sleeping
Ideal for average weight back sleepers.
Stomach Sleeping
Ideal for lightweight and average weight stomach sleepers.Financing Options
Financing options are available for this mattress.
Helix Dawn Mattress
The Helix Dawn is one of the company's firmest models. Because of this, it should be a supportive option for stomach sleepers.
Material
Hybrid
Firmness
Firm: 7.5/10
Trial Period
100 nights
Warranty
10-year warranty
Shipping Method
Free shipping
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
Back Sleeping
Ideal for average weight back sleepers.
Stomach Sleeping
Ideal for lightweight and average weight stomach sleepers.Financing Options
Financing options are available for this mattress.
If you’re a back or stomach sleeper who suffers from back pain, the Helix Dawn mattress could be a great choice. This bed feels a bit firmer than average beds, coming in at 7.5/10 on our firmness scale. This not only prevents it from sagging; it’s also a supportive option for heavier people! We expect the Helix Dawn mattress to have a long lifespan as well — at least 10 years.
What Makes The Helix Dawn Stand Out?
- It has a firm feel, which is great for back and stomach sleepers who suffer from back pain.
- Because it’s so supportive, it’s a great choice for heavier people.
- The mattress contains high-quality materials, so it should last at least 10 years.
Read our full Helix Dawn mattress review to learn more. If you aren’t interested in the Helix mattress, check out our list of the best memory foam mattresses for more great options!Â
WinkBed Plus Mattress
The WinkBeds Plus is a mattress made specifically for larger people, and heavier stomach sleepers should get the support they need on the WinkBeds Plus.
Material
Hybrid
Trial Period
120 nights
Shipping Method
Free shipping
Firmness
Firm: 7.5/10
Warranty
Lifetime warranty
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Back Sleeping
Ideal for heavyweight back sleepers.
Stomach Sleeping
Ideal for heavyweight stomach sleepers.Financing Options
Financing options are available for this mattress.
WinkBed Plus Mattress
The WinkBeds Plus is a mattress made specifically for larger people, and heavier stomach sleepers should get the support they need on the WinkBeds Plus.
Material
Hybrid
Warranty
Lifetime warranty
Firmness
Firm: 7.5/10
Shipping Method
Free shipping
Trial Period
120 nights
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Back Sleeping
Ideal for heavyweight back sleepers.
Stomach Sleeping
Ideal for heavyweight stomach sleepers.Financing Options
Financing options are available for this mattress.
WinkBed Plus Mattress
The WinkBeds Plus is a mattress made specifically for larger people, and heavier stomach sleepers should get the support they need on the WinkBeds Plus.
Material
Hybrid
Firmness
Firm: 7.5/10
Trial Period
120 nights
Warranty
Lifetime warranty
Shipping Method
Free shipping
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Back Sleeping
Ideal for heavyweight back sleepers.
Stomach Sleeping
Ideal for heavyweight stomach sleepers.Financing Options
Financing options are available for this mattress.
WinkBeds is known for creating extra-supportive mattresses with a traditional innerspring feel. With the WinkBeds Plus, they took this support even further by designing a mattress specifically for heavy people. Heavy sleepers over 230 lb should feel lifted by the Plus’ exceptionally tall layer of coils at the bottom of the mattress’ structure. But larger folks will also get a good amount of pressure relief from a tufted Euro top of foam that’s resistant to body impressions. That means it’s extremely unlikely to sag, even under extra weight.
What Makes the WinkBeds Plus Stand Out?
- Sleepers should have no trouble staying cool. The coils leave plenty of space for air to flow through the mattress, and the cover is made of a soft, breathable material called Tencel.
- The coils are zoned, meaning that they’re firmer in certain places and softer in others. This allows them to give support where the body needs it the most.
- We think the WinkBeds Plus will be most comfortable for heavy back sleepers and heavy stomach sleepers.
Read our full WinkBeds Plus mattress review to learn more. If you aren’t interested in the WinkBeds mattress, check out our list of the best mattresses for heavy people for more great options!Â
Nolah Natural Mattress
The Nolah Natural mattress, made entirely out of eco-friendly materials, feels both supportive and comfy. Back sleepers will especially appreciate its zoned coil system.
Material
Latex
Trial Period
120 Nights
Shipping Method
Free shipping
Firmness
Soft: 6/10
Warranty
Lifetime warranty
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Back Pain
This bed is perfect for anyone suffering from back pain.
Back Sleeping
Ideal for lightweight, average weight, and heavyweight back sleepers.
Side Sleeping
Ideal for lightweight, average weight, and heavyweight side sleepers.
Stomach Sleeping
Ideal for lightweight stomach sleepers.Financing Options
Financing options are available for this mattress.
Nolah Natural Mattress
The Nolah Natural mattress, made entirely out of eco-friendly materials, feels both supportive and comfy. Back sleepers will especially appreciate its zoned coil system.
Material
Latex
Warranty
Lifetime warranty
Firmness
Soft: 6/10
Shipping Method
Free shipping
Trial Period
120 Nights
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Back Pain
This bed is perfect for anyone suffering from back pain.
Back Sleeping
Ideal for lightweight, average weight, and heavyweight back sleepers.
Side Sleeping
Ideal for lightweight, average weight, and heavyweight side sleepers.
Stomach Sleeping
Ideal for lightweight stomach sleepers.Financing Options
Financing options are available for this mattress.
Nolah Natural Mattress
The Nolah Natural mattress, made entirely out of eco-friendly materials, feels both supportive and comfy. Back sleepers will especially appreciate its zoned coil system.
Material
Latex
Firmness
Soft: 6/10
Trial Period
120 Nights
Warranty
Lifetime warranty
Shipping Method
Free shipping
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Back Pain
This bed is perfect for anyone suffering from back pain.
Back Sleeping
Ideal for lightweight, average weight, and heavyweight back sleepers.
Side Sleeping
Ideal for lightweight, average weight, and heavyweight side sleepers.
Stomach Sleeping
Ideal for lightweight stomach sleepers.Financing Options
Financing options are available for this mattress.
Latex is great if you want a mattress that won’t sag. The Nolah Natural is a latex hybrid mattress that is a great long-term investment. It features thick Talalay latex in its comfort layer which won’t break down the way some memory foam and polyfoam might. In addition to the Talalay latex, the mattress contains organic cotton, wool, and other eco-friendly materials. This makes the Nolah Natural a great organic mattress that won’t sag.
What Makes The Nolah Natural Stand Out?
- The Nolah Natural features organic materials that will keep you sleeping cool all night.
It is a bouncy mattress that makes it very easy to move around and change positions.
The Nolah Natural is zoned, making it firmer toward the center, and a great fit for people with back pain.
Read our full Nolah Natural mattress review to learn more. If you aren’t interested in the Nolah Natural mattress, check out our list of the best organic mattresses for more great options!Â
Birch Mattress
Birch is an eco-friendly mattress-in-a-box that’s made with natural latex and organic cotton and wool. It has a base layer of individually wrapped coils and comfort layers made with chemical-free latex foam.
Material
Hybrid
Trial Period
100 nights
Shipping Method
Free shipping
Firmness
Medium-firm: 7/10
Warranty
25-year warranty
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Back Sleeping
Ideal for average weight back sleepers.
Stomach Sleeping
Ideal for average weight stomach sleepers.Financing Options
Financing options are available for this mattress.
Birch Mattress
Birch is an eco-friendly mattress-in-a-box that’s made with natural latex and organic cotton and wool. It has a base layer of individually wrapped coils and comfort layers made with chemical-free latex foam.
Material
Hybrid
Warranty
25-year warranty
Firmness
Medium-firm: 7/10
Shipping Method
Free shipping
Trial Period
100 nights
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Back Sleeping
Ideal for average weight back sleepers.
Stomach Sleeping
Ideal for average weight stomach sleepers.Financing Options
Financing options are available for this mattress.
Birch Mattress
Birch is an eco-friendly mattress-in-a-box that’s made with natural latex and organic cotton and wool. It has a base layer of individually wrapped coils and comfort layers made with chemical-free latex foam.
Material
Hybrid
Firmness
Medium-firm: 7/10
Trial Period
100 nights
Warranty
25-year warranty
Shipping Method
Free shipping
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Back Sleeping
Ideal for average weight back sleepers.
Stomach Sleeping
Ideal for average weight stomach sleepers.Financing Options
Financing options are available for this mattress.
When it comes to sleeping positions, having a mattress that doesn’t sag is especially important for stomach sleepers. If the mattress dips too much, it can cause their hips to bow and fall out of alignment with their shoulders. Luckily, the Birch mattress is made from materials that should keep stomach sleepers lifted and healthily aligned. Its comfort layers are made of latex foam — a material known for its natural durability and responsiveness. At the bottom of the mattress, a layer of individually wrapped coils adds to the mattress’ overall support.
What Makes The Birch Stand Out?
- The Birch is an environmentally friendly mattress made with organic materials. Some of its eco-conscious features include organic cotton and wool, and ventilated Talalay latex.
- We think the Birch should also be comfortable for back sleepers, as long as they prefer a firmer mattress.
- If you want more pressure relief, you can pay extra for an optional mattress topper.
Read our full Birch mattress review to learn more. If you aren’t interested in the Birch mattress, check out our list of the best mattresses for stomach sleepers for more great options!Â
Marten’s Take
Marten is our Director of Content, and he has a much different body type than me (he’s 6’7″ and weighs about 230 lb while I am 5’9″ and weigh 160 lbs). Here’s what he thought about these mattresses:
I reviewed the WinkBed Plus, which is made specifically for larger people like me. It’s extremely supportive and durable because there are high-density foams on top and particularly high-grade coils beneath that shouldn’t sag.
The Saatva HD is a fantastic choice for heavier sleepers who sleep in any position; it’s a great fit whether I am on my back, side, or stomach.
It seems Marten thought all 10 mattresses could be a good fit for him. This isn’t surprising, given that these are all very durable mattresses, and durability is usually accompanied by a decent amount of support.
What Should Someone Consider When Finding A Mattress That Won’t Sag?
- What is the density of the foam found in the mattress? Mattresses often sag because there’s a layer of low-density foam somewhere in the construction. So if someone wants a foam mattress that won’t sag, they should pay close attention to the foam density. If someone chooses a mattress that is 2.5- or 3-lb foam, it might start to sag. But if they pick a mattress with 4- or 5-lb density foam, this should help the mattress last longer.
- What type of foam is featured in the mattress? If someone wants a mattress that won’t sag, latex foam is going to be particularly good because it’s responsive, bouncy, and durable. This natural product can handle heavier weights without sagging.
- Does the mattress feature coils in its construction? If someone wants a mattress that isn’t going to sag, they should take a look at something with innerspring coils because they add an extra level of support and durability. The coils will help support heavier weights while also fighting significant sagging in the mattress.
- Make sure you get the right support system. Getting the right support can keep your mattress from sagging too quickly. Your mattress could require a special foundation or box spring.
- How often should you replace your mattress? Think about how long the mattress is going to last and when it might be time to switch up.
RELATED: How Often Should You Rotate Your Mattress?
How To Tell If A Mattress Is Sagging
Impressions
Note that there’s a difference between the natural body impressions of a bed and a mattress that’s truly sagging. Body impressions are usually a series of small dips. Sagging results in one long dip across the bed, almost resembling a smile that runs the length of the mattress.
Dip
If you think your mattress is sagging, measure the dip. If it’s less than two inches deep, then you’re fine. But if it’s more than two inches deep, that means your bed is sagging.
How To Fix A Sagging Mattress
Find the Proper Base
Replace the sleep foundation, and make sure your new foundation — whether a platform bed, slats, or something else — is compatible with your specific mattress. If you use slats, make sure they’re evenly spaced out.
Use Pillows
Strategically add pillows around your back, hips, and legs. This is more of a temporary solution, but it will somewhat replace the support that’s been lost in the sagging mattress.
Add a Mattress Topper
This will thicken the bed and provide more contouring and support. See our list of best mattress toppers if you’re in need of suggestions!
Turn Around Your Mattress
Turn your mattress around so that the head is now the foot and vice versa. This will redistribute your body weight and help keep the mattress from sagging further.
What Causes A Mattress To Sag
The reasons are relatively simple. First, a mattress may sag as a result of simple wear and tear on a bed. The more common reason is that the mattress isn’t properly constructed for durability. That’s why it’s so important to get a mattress that you know will last you years and years.
Overall
Here’s a recap of our top picks for the best mattresses that won’t sag:
| Mattress | Superlative |
| Helix Plus | Best Firm Mattress That Won’t Sag |
| Brooklyn Bedding Signature Hybrid | Best Mattress Under $1,000 That Won’t Sag |
| Plank Firm | Best Extra-Firm Mattress That Won’t Sag |
| Saatva HD | Best Mattress For Heavy People That Won’t Sag |
| Nectar | Best Foam Mattress That Won’t Sag |
| Bear Star Hybrid | Best Hybrid Mattress That Won’t Sag |
| Helix Dawn | Best Mattress For Back Pain |
| WinkBeds Plus | Best Mattress for Heavy People |
| Nolah Natural | Best Organic Mattress That Won’t Sag |
| Birch | Best Mattress for Stomach Sleepers |
FAQs
Do memory foam mattresses sag?
Low-quality memory foam mattresses have a tendency to sag. To avoid this, make sure you find a bed made with high-density foam. These beds will last much longer (about 7–10 years). If you're especially worried about a sagging mattress, opt for a hybrid model made with springs and memory foam. The supportive coils underneath should keep the mattress in good condition for many years.
Can a bed frame cause a mattress to sag?
Yes. If your bed frame isn't supportive enough, your mattress could sag. The same goes for box springs. If your current box spring can't support your mattress's weight, the bed might dip and sag.
Can you fix a sagging mattress?
While it's more or less impossible to permanently fix a sagging mattress, there are temporary solutions such as replacing your sleep foundation, rotating your bed, adding more pillows to specific areas of your body, and adding a mattress topper.
Can a sagging mattress cause back pain?
Yes. Because the bed is no longer evenly supportive, a sagging mattress can cause pain and stiffness, and throw your spine out of its neutral alignment.
How much should a mattress sag?
A mattress that sags two inches or less is perfectly normal. If it's sagging more than two inches, then it's time to think about a solution.
