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AS1

Medical expert approved
In-stock
Free shipping & Returns
AS1
Medical expert approved
In-stock
Free shipping & Returns
  • Feel
    Firm
  • Profile height
    10-inch
  • Enhanced cooling
    Refresh Cooling
    Technology

Add a base

Bed, frame, platform, whatever you want to call it: If you're also hunting for the perfect mattress support, we've got some winners to choose from.

Why you'll love it

Our firmest mattress option designed to offer peaceful sleep for back and stomach sleepers. Its 10-inch profile fits in any bed frame, and its sleep-promoting layers are engineered to deliver comfortable rest for years to come.

Benefits

  • Experience cooling comfort with our plant-based Bio-Pur® memory foam
  • Ultra-supportive feel to facilitate healthy stomach and back sleeping
  • Prevent sagging and uncomfortable sinkage with our durable base foam
  • Fiberglass-free mattress is eco-friendly and non-toxic

Bonuses

  • Free, no contact fast shipping
  • 100-night, risk-free sleep trial
  • Easy and free returns
  • 20-year warranty
  • Mattress made in the USA*

*Made in the USA of U.S. and imported components. Covers sewn in Canada.

Have a question? Talk to us

Our friendly Sleep Experts are here to help.

AS1
Health badgeSleepFoundation badgeHealthline badgeThe Sleep Shop badge
  • Risk-free,
    100-night trial

  • 20-year warranty

  • Free shipping
    & returns

  • Made in USA*

  • Non-toxic
    & Fiberglass-Free

AS1
AS1

See Why Sleep Experts and Millions Recommend
Amerisleep as The Top Mattress on Social

No more twin size mattress on a full size bed 😂 talk about mattress upgrade! Amerisleep mattresses sre eco-friendly and fiber-glass free
@missjessicanicoleblog
No more twin size mattress on a full size bed 😂 talk about mattress upgrade! Amerisleep mattresses sre eco-friendly and fiber-glass free
Sleeping soundly tonight after upgrading our mattress to @amerisleep! I had absolutely no idea that so many mattresses have harmful materials in them like fiberglass that can cause issues...
@bloomandbabe
Sleeping soundly tonight after upgrading our mattress to @amerisleep! I had absolutely no idea that so many mattresses have harmful materials in them like fiberglass that can cause issues like asthma, rashes and bronchitis! So happy we chose a mattress company that I can 100% stand behind and feel safe sleeping on!
Best Clean Mattress for Kids? @amerisleep
@styledby_ness
Best Clean Mattress for Kids? @amerisleep
Sore body from bad sleep? 🤬💤

About 6 months ago I was waking up with soreness at the base of my neck almost every night. I modified these 3 things and it helped immensely!!

1️⃣Sleepin...
@dr.devon
Sore body from bad sleep? 🤬💤About 6 months ago I was waking up with soreness at the base of my neck almost every night. I modified these 3 things and it helped immensely!!1️⃣Sleeping Position2️⃣Supportive Mattress3️⃣Morning Mobility RoutineThanks to @amerisleep for helping my get to a pain free sleep!
unboxing videos are so much fun. I seriously have not slept this good in 25 years of life. This mattress, HANDS DOWN THE BEST.
@makaylahelms
unboxing videos are so much fun. I seriously have not slept this good in 25 years of life. This mattress, HANDS DOWN THE BEST.
We switched out Choe’s mattress with an @Amerisleep mattress. We love it because it is comfy, eco-friendly and fiberglass free! Plus it’s made in the USA.
@anniemescallhome
We switched out Choe’s mattress with an @Amerisleep mattress. We love it because it is comfy, eco-friendly and fiberglass free! Plus it’s made in the USA.
Does your mattress contain toxic materials like fiberglass?

The reason we chose @amerisleep to replace our son’s old mattress is because it’s made in the USA and it’s 100% fiberglass fre...
@eastcoastcolonial
Does your mattress contain toxic materials like fiberglass?The reason we chose @amerisleep to replace our son’s old mattress is because it’s made in the USA and it’s 100% fiberglass free, eco-friendly, and non-toxic. It contains plant-based memory foam and a cooling cover. This is the AS3 Hybrid mattress with Comfort Classic Pillows.
Want to know the secret to sleeping with back pain? It’s @Amerisleep !
@corlando_fitness
Want to know the secret to sleeping with back pain? It’s @Amerisleep !
Time to upgrade!
@jessicabelteauhome
Time to upgrade!
Awaken to a better tomorrow! 🛌🌞 @amerisleep
@onceuponadoctor
Awaken to a better tomorrow! 🛌🌞 @amerisleep
My best tip for your skincare routine? A good nights sleep! Which is sometimes easier said than done with 2 little dudes in the house - but you definitely can’t be well rested without a c...
@houseon610th
My best tip for your skincare routine? A good nights sleep! Which is sometimes easier said than done with 2 little dudes in the house - but you definitely can’t be well rested without a comfy bed! #ad We just upgraded our mattress to the @Amerisleep AS3 and have never slept better. Good sleep means collagen production - and collagen production means healthier skin! 🙌🙌
The sleep we all deserve! @amerisleep has given the girls the gift of a good nights sleep ☁️

As parents you want the best for your kids; especially a good night sleep. With Amerisleep we...
@theverestplace
The sleep we all deserve! @amerisleep has given the girls the gift of a good nights sleep ☁️As parents you want the best for your kids; especially a good night sleep. With Amerisleep we know our girls are getting a safe sleep with their fiberglass free, luxury mattresses.
Nothing but the best for our kiddos!

Choosing @amerisleep was a no brainer! The quality sleep that AmeriSleep has brought to our children’s lives is beyond anything we could have dreamed...
@theverestplace
Nothing but the best for our kiddos!Choosing @amerisleep was a no brainer! The quality sleep that AmeriSleep has brought to our children’s lives is beyond anything we could have dreamed of. Safe, durable and dreamy 💭Kids bedroom | kids bedding | mattresses | good nights sleep | best sleep ever | little kids room | toddler bedroom | bedroom inspiration | canopy bed | cozy bedding | girls bedroom | little girls room
Cozy guest getaway is complete! 😍 #sponsored when we started planning out this space, we knew one of the most important essentials we needed was an amazing mattress for our guests. We fo...
@alexa.elizabeth.style
Cozy guest getaway is complete! 😍 #sponsored when we started planning out this space, we knew one of the most important essentials we needed was an amazing mattress for our guests. We found the @Amerisleep AS3 Hybrid mattress and are so impressed with how cool and comfortable it is!! Setting it up was so easy - the mattress shipped in a box and all we had to do was take it out and let it expand 🙌 if you’ve been on the hunt, definitely check it out! ✨
Why I upgraded my mattress!
@thislittlelifewebuilt
Why I upgraded my mattress!
Choosing a mattress that is nontoxic and fiberglass free is the most important factor for me as a mom! That's why we upgraded Bristol's mattress to an @Amerisleep AS3 which is both nontox...
@kristensellentin
Choosing a mattress that is nontoxic and fiberglass free is the most important factor for me as a mom! That's why we upgraded Bristol's mattress to an @Amerisleep AS3 which is both nontoxic and fiberglass free!
Well my daughter Violet is one lucky girl! She got a new @amerisleep AS3 Hybrid Mattress! This mattress is seriously amazing! #ad It keeps you nice and cool while you sleep and has pocket...
@house.becomes.home
Well my daughter Violet is one lucky girl! She got a new @amerisleep AS3 Hybrid Mattress! This mattress is seriously amazing! #ad It keeps you nice and cool while you sleep and has pocketed coils that cradle your body. It also has Isolette motion transfer and firm edge support, so you can get in and out of bed easily which is a must for me! I’m actually pretty jealous of her mattress! I I highly recommend checking out the AS3 Hybrid Mattress by Amerisleep!
Take the stress out of shopping for a mattress and shop with confidence with @amerisleep 🇺🇸 . . PS🤍 how cute is this space!
@fleur_at_home
Take the stress out of shopping for a mattress and shop with confidence with @amerisleep 🇺🇸 . . PS🤍 how cute is this space!
Sleep soundly and comfortably on an @amerisleep mattress that provides the perfect combination of support and comfort.
@doctor.brianortho
Sleep soundly and comfortably on an @amerisleep mattress that provides the perfect combination of support and comfort.
  • Inc. logo

    Taking The Mattress
    Industry by Storm

  • Forbes logo

    Masterpieces of Midnight
    Melatonin Replenishment

  • icon of 4.7 stars

    15,000+ Reviews
    Average of 4.7 stars1

  • USA TODAY logo

    Sleep Education Over
    Superficial Satisfaction

  • Adweek logo

    Experience First,
    Sales Second

Better sleep through better design

  • Sleep Cooler

  • Comfort You Will Love

  • Designed to Enhance Sleep

  • Alleviates Pressure Points

  • Eco-Friendly Production

Experience Bio-Pur®:
Eco-Friendly, Cooler Memory Foam

Bio-Pur® is the perfect answer to a better bed. Available in every Amerisleep mattress, we engineered Bio-Pur® to deliver cooling comfort, responsive support, and healthier sleep.

Memory foam lovers say Bio-Pur® is a huge upgrade, while critics admit it solves all the problems of traditional memory foam. Plus, since our beginnings in 2009, we've proudly manufactured Bio-Pur® in the USA.

Bio-Pur® vs Traditional Memory Foam

Breathable & Cooling

Bio-Pur®'s large, open-cell structure has a few distinct advantages:

  • Allows air to flow freely
  • Prevents heat build-up
  • Perfect for hot sleepers

Responsive & Supportive

Unlike traditional memory foam, Bio-Pur® has a rapid response time that:

  • Relieves painful pressure points
  • Prevents heat build-up
  • Bounces back in just seconds

Eco-Friendly Materials

Featuring renewable plant-based oils, Bio-Pur® helps us:

  • Minimize use of non-renewable resources
  • Prevents heat build-up
  • Produce products that are better for you and the planet

A Healthier Sleep

The surface you sleep on is important. That’s why Bio-Pur® is:

  • CertiPUR-US® certified & low in VOCs
  • Resistant to dust mites, mold, and mildew & made without harsh chemicals

See why our customers love Bio-Pur®

So ideal in so many ways
Our king-size Amerisleep is the most comfortable, movable, breathable, restful mattress we've ever slept on, and would not consider buying any...
Perfectly Balanced
I hit the purchase button and wasn't disappointed. All the good things you've read - breathable, soft yet supportive, environmentally friendly...
Sleeps Cool and is Very Comfortable
We upgraded to a king bed and transitioned to foam from inner spring. My wife and I sleep so much better. We move a lot in the night, and our...
I would recommend this mattress to anyone
This king size mattress is GREAT!! My other king is now in the guest room and I'm enjoying my cool, comfortable Amerisleep mattress.
So with the investment. Wish I made the move earlier
So good for those with restless sleepers. My partner is finally getting rest. And I who was usually running hot and cool and comfortable.
Excellent Product, Excellent Sleep
This is an excellent mattress. I was a bit worried getting the Amerisleep, as I am primarily a side sleeper, but I am getting the best sleep o...
Cooler, better nights sleep
We were very nervous to buy this mattress without seeing it first. It is really comfortable. I used to get too hot every night with my old mat...
I love my new mattress!
We ordered the first twin xl for our master bedroom adjustable bed. My husband wanted a new mattress for his side. I liked mine so we just got...
I look forward to bedtime : )
I have been looking at mattresses for about 8 years, doing research in town (nothing was working for me) so I started to do research on the in...
I would buy from Amerisleep again
Primary bed. Bought this for the cooling aspect and hip issues.
This is our second mattress and we love both
This is a second bed that is used often when having trouble sleeping. We have been using our first mattress for several years and love it. Thi...

Relieves pain & pressure points

Our Bio-Pur® comfort layer contours to your body and relieves pain-causing pressure points. But it also bounces back fast, so you never feel “stuck” if you move around at night.

Soothing pressure point relief

More responsive than traditional foam

Made with back and stomach sleepers in mind

Our firmest mattress offers gentle-but-firm support that stays cool all night.

Amerisleep AS1 mattress coverAmerisleep AS1 mattress layers

Ultra-Breathable Comfort

Our soft and ultra-breathable covers help prevent overheating, so you can sleep your best each night.

Stays Cool & Never Feels “Stuck”

Bio-Pur®'s open-cell design keeps you cooler than traditional foam. It also contours to your body to relieve pressure points and bounces back fast, so you won't feel “stuck”.

Durable Support for Decades

The Bio-Core® base layer gives you durable support that lasts for decades. It won't sag or develop soft spots over time. (And we prove it with our 20-year warranty.)

Enjoy deeper sleep and more daily energy. Try the AS1 for 100 nights.

100 Night Trial
Risk-free, 100-night trial
with free shipping & returns

Upgrade your mattress with our complete sleep system

Go ahead and relax

Shop our lineup of pillows engineered for better head and neck support.

Browse Pillows
Amerisleep pillow

Wrap yourself in luxury

Explore our suite of bedding options designed for exceptional softness and comfort.

Browse Bedding
Amerisleep bedding

Which mattress is right for you?

Features AS1AS3AS5
Type All-Foam Hybrid (All-Foam) Hybrid (All-Foam)
Firmness
7
Firm
5
Medium
3
Soft
Height 10 inches 12 inches 14 inches
Targeted Support No Yes (HIVE) Yes (HIVE + Active Flex)
Recommended Sleep Positions Back/Stomach Side/Back Side/Back
Cooling Technology Yes Yes Yes
Motion Isolation Yes Yes Yes
Pressure Relief High Higher Maximum

Specifications

Available Sizes (Inches)

  • Twin
    38" W x 74" L x 10" H
  • Twin XL
    38" W x 80" L x 12" H
  • Full
    54" W x 75" L x 10" H
  • Queen
    60" W x 80" L x 10" H
  • King
    76" W x 80" L x 10" H
  • Cal King
    72" W x 84" L x 10" H
  • Split King
    38" W x 80" L x 10" H (x2)

Free Shipping

We are excited to offer shipping to our Canadian customers! Our mattresses and accessories are shipped via FedEx and typically take two to three weeks to arrive. Additional customs duties and taxes may apply.

Please note: All our products ship separately, so if you’ve ordered a foundation, base, sheets, or any other sleep accessories to go with your new mattress, they may arrive sooner or later than your Amerisleep mattress.

20-Year Warranty

Amerisleep mattresses are backed by an industry-leading 20-year warranty. For the first 10 years, we will replace your mattress if you encounter any defects, including sagging greater than 1.5” inches. And for the second 10 years, we will offer you a prorated replacement.

Compatibility

Our mattresses are compatible with a variety of bed frames and bases.

Mattress Foundations
Our memory foam and hybrid mattresses are best supported on solid or slatted mattress foundations. We offer a variety of bed bases which are all compatible with our mattresses. Non-Amerisleep foundations, however, should have slats no more than 2.75 inches apart.

Platform Beds
Platform beds have a solid or slatted base, so they can provide proper support for our mattresses. If you have a platform bed with large gaps between slats that was not designed by Amerisleep, we suggest buying extra slats or a bunkie board to create a sturdier surface for your mattress and meet warranty guidelines.

Adjustable Bed Frames
Our memory foam mattresses work well with adjustable bed frames. They’re adaptable and flexible, so they can move with the base without becoming damaged or worn. We even sell two adjustable bed frames to pair with our beds: the Amerisleep Adjustable Bed and the Amerisleep Adjustable Bed+.

While our mattresses can work with most bed frames and foundations, it’s not compatible with absolutely every type of mattress support — namely box springs.

Box Springs
Box springs are best paired with innerspring mattresses, and since innerspring beds were the most common for many years, a lot of us have box springs at home. Box springs contain coils within and as a result, are bouncy. Beds with foam layers can experience premature wear, tear, and unexpected damage when paired with one of these because they do not offer the even, sturdy support foam beds need.

If you intend to use an existing bed frame, please confirm dimensions & assembly options for your bedframe to ensure compatibility.

See what our satisfied sleepers have to say

Be the first to let us know what you think!

Frequently Asked Questions

Firm mattresses are well-suited for stomach and back sleepers interested in a supportive bed. We especially recommend the AS1 mattress for stomach sleepers because they need a bed to keep their abdomen from sinking too far. Gravity pushes down on a stomach sleeper’s belly and pelvis area as they sleep, and if the mattress is too soft and promotes sinkage, they may wake up with a sore back.

The AS1 memory foam mattress is 10 inches thick. Two layers make up the mattress:

  • 2 inches of Bio-Pur® foam
  • 8 inches of Bio-Core® foam

Both foams are exclusive to Amerisleep. Our Bio-Pur® foam is more breathable and responsive than traditional memory foam. It’s so comfortable that we use it in all of our memory foam and hybrid mattresses.

Bio-Core® is a sturdy and resilient foam. Its supportive nature allows us to offer a 20-year warranty with every mattress.

No, our AS1 mattress does not have a hybrid version. If you’re interested in a bouncy yet firm mattress, we recommend our AS2 Hybrid. It has a buoyant medium-firm feel that’s suitable for back sleepers and select stomach sleepers.

No, we do not recommend our AS1 mattress for side sleepers. If a side sleeper tries to rest on our firm AS1 model, they will find it difficult to drift off and likely feel sore when they wake up. We recommend the softer AS3, AS4, and AS5 models for side sleepers, instead.

No, it would be best if you did not flip the AS1 mattress. Flipping the mattress means sleeping on the bed’s support layer instead of its comfort layer, and when you do this, pressure points are likely to build up across your body. Leaving the mattress flipped for too long may damage the Bio-Pur® foam, meaning the mattress won’t feel as comfortable when you return it to its upright position.

Instead of flipping the AS1, rotate it every three to six months to even wear.

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