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AS1

Starting at $899  $699
Available in 7 sizes
AS1
FIRM FEEL Profile Height: 10-inch

Risk-free, 100-night trial

20-year warranty

Free shipping & returns

Made in USA

AS1

Why you'll love it
Benefits
Bonuses

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.

  • Plant-based Bio-Pur® memory foam is cooling, responsive, and pressure-relieving
  • Ultra-supportive feel to facilitate healthy stomach and back sleeping
  • Durable base foam prevents sagging and uncomfortable sinkage
  • Free, no contact fast shipping
  • 100-night, risk-free sleep trial
  • Easy and free returns
  • 20-year warranty
  • Twin (38" x 74") $899
  • Twin XL (38" x 80") $949
  • Full (54" x 75") $1149
  • King (76" x 80") $1599
  • Queen (60" x 80") $1299
  • California King (72" x 84") $1599
  • Split King (38" x 80" - 2) $1898
Amerisleep foundation
Amerisleep Foundation

Perfectly support your mattress

+ $275
$1299 $1099 with promo
save $200.00
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Better sleep through better design

Sleep Cooler

Sleep Cooler

Comfort You Will Love

Comfort You Will Love

Tested to Last

Designed to Enhance Sleep

More Support, Deeper Sleep

Alleviates Pressure Points

Eco-Friendly Production

Eco-Friendly Production

Stays cool all night

Our plant-based Bio-Pur® material keeps you cool all night. It features an open-cell design that allows more air to escape than traditional foam.

Moon icon

Open-cell design wicks away warm air

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More breathable than traditional foam

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

Traditional memory foams miss the mark when it comes to cooling and responsiveness. Amerisleep’s proprietary Bio-Pur® memory foam is an eco-friendly alternative that blends contouring comfort with buoyant support and superior breathability to help you get your best night’s sleep yet.

Our plant-based Bio-Pur® is significantly more breathable and responsive than traditional memory foam. It snaps back to its original shape in seconds, so it’ll never cause you to uncomfortably sink, and it’s significantly more porous and airy, so you won’t have to worry about night sweats. Even better? Bio-Pur® contains a fraction of the petrochemicals used in other memory foams, so it’s less likely to off-gas and is completely free of harmful substances.

That’s why in over 15,000 reviews, our mattresses rate 4.7 out of 5 stars and why 98% of customers would recommend us to a friend.

See why our customers love Bio-Pur®

All
Breathable
Comfortable
Responsive
Supportive
  • All
  • Breathable
  • Comfortable
  • Responsive
  • Supportive

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.

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Soothing pressure point relief

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More responsive than traditional foam

Crafted for lasting comfort

We make our mattresses here in America with the highest quality craftsmanship. They’re built to last and backed by a two-decade warranty.

Warranty icon

Industry-leading 20-year warranty

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Won’t sag or develop soft spots

Made with back and stomach sleepers in mind

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

Amerisleep AS1 mattress cover Amerisleep 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

Specifications

 
Available sizes
(inches)
  • Twin 38" W x 74" L x 10" H
  • Twin XL 38" W x 80" L x 10" 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

Amerisleep Mattresses come with free shipping within the continental US. We ship our mattresses direct to your home and compressed in an eco-friendly box using FedEx. And in most cases, they arrive in two weeks or less.

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. But don’t worry, shipping is always free.

 
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 0.75”. 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. Slatted bases should have slats no more than 3 inches apart — we even sell our Amerisleep Mattress Foundation designed to pair perfectly with our mattresses.

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, 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.

Upgrade your mattress with our complete sleep system

Amerisleep pillow
Go ahead and relax

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

Browse Pillows
Amerisleep bedding
Wrap yourself in luxury

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

Browse Bedding

See what our satisfied sleepers have to say

All reviews are unaltered and verified by a 3rd party.

*Reviews

All featured customer reviews are unaltered and verified by a third-party. The comments made by customers are not intended as advertisements, and should be understood as the perspective of each individual based on their experience. These reviews should not be construed to mean that these experiences are universal or that results will always be the same.

Frequently asked questions

 
Who are firm mattresses good for?

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.

 
How thick is the AS1 model?

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.

 
Does the AS1 model come in a hybrid version?

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.

 
Is the AS1 comfortable for side 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.

 
Can you flip the AS1 to extend the mattress’s lifespan?

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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100 night trial. Free shipping & returns.

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