With a medium feel, the AS3 evenly blends support and softness. It offers targeted pressure relief that stays cool all night, making it our most popular mattress.
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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.
Open-cell design wicks away warm air
More breathable than traditional foam
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
We make our mattresses here in America with the highest quality craftsmanship. They’re built to last and backed by a two-decade warranty.
Industry-leading 20-year warranty
Won’t sag or develop soft spots
With a medium feel, the AS3 evenly blends support and softness. The HIVE® layer contours to your body and relieves pain-causing pressure points.
Our soft and ultra-breathable covers help prevent overheating, so you can sleep your best each night.
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”.
Our HIVE® transition layer provides targeted support and pressure relief so you can sleep in perfect alignment. It gives your head, back, and legs more support, and your shoulders and hips more cushion.
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.)
With a medium feel, the AS3 Hybrid evenly blends support and softness. The HIVE® layer contours to your body and relieves pain-causing pressure points.
Our soft and ultra-breathable covers help prevent overheating, so you can sleep your best each night.
Our Bio-Pur® material’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” during the night.
A firmer perimeter helps with mattress durability and makes getting in and out of bed easier.
Patented zoned support system improves alignment by reducing pain-causing pressure points and adding more support where you need it most.
Thin layer of transition foam used for added comfort and structure for a more durable and resilient base.
Our HIVE® transition layer gives your body targeted support to ease tension and help you sleep in perfect alignment. It provides added support under your head, back, and legs. And it gives your shoulders and hips extra cushion. We’ve also designed HIVE® to reduce pain-causing pressure points.
Amerisleep’s proprietary zoned-support system features three comfort zones. It delivers more support for your back, and offers more cushion above the shoulders and below the hips. That helps keep your body aligned, resulting in more comfortable sleep with less pain.
Amerisleep Hybrid models are designed to offer more support, airflow, and durability.
Pocket-coil springs provide responsive support with more bounce.
Individual coils allow extra airflow beneath the upper foam layers to keep you cool.
Individual coils limit motion transfer and provide more localized cushion.
Our spring layer features durable pocket-coils that won’t sag or develop soft spots.
Try your new Amerisleep mattress in your own home risk-free for 100 nights. If you don’t love it, our customer support team in Arizona will give you a fast and full refund. We’ll even help you schedule a pickup to recycle your returned mattress.
Amerisleep mattresses come with fast and free shipping within the continental US. We ship our mattresses compressed in an eco-friendly box using FedEx. And in most cases they arrive in a week or less.
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.
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
Both our memory foam and hybrid 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+.
The Floor
If you don’t have a bed frame or foundation at home and don’t care to buy one, you have the option to place one of our mattresses directly on the floor. The floor will provide even support for your bed, but do keep in mind that with a mattress being directly on the floor, it’s likely to accumulate dust, dirt, and allergens a lot faster than if it were raised up off the ground. Additionally, you’ll want to occasionally air out the bottom side of your mattress since there are no gaps underneath that allow for air flow or circulation. With that, we don’t recommend using your mattress directly on the floor, but it can be done.
While our mattresses can work with most bed frames and foundations (or be set directly on the floor), 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.
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Shop our lineup of pillows engineered for better head and neck support.
Browse PillowsExplore our suite of bedding options designed for exceptional softness and comfort.
Browse BeddingReviews before January 2020 refer to our AS3 mattress only. Reviews afterward may include our AS3h.
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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.
The AS3 gently contours to your whole body, with targeted support for your back.
No, we use durable materials designed to last for decades. They won’t sag or develop soft spots, and the ultra-breathable white should always face upward.
Thick sheets can trap heat and reduce the breathability of our mattresses. We recommend you pair your Amerisleep mattress with our luxurious and breathable bedding.
The best place to try a new mattress is in your own home. That’s why we offer a risk-free, 100-night trial. It lets you experience the best your mattress has to offer, and if you don’t love it we’ll give you a full refund.
But if you do want to try the Amerisleep AS3 in person, you can visit one of our retail locations. (You’re still covered by the 100-night trial, even if you order in one of our stores.)
It sure can! Both our memory foam and hybrid mattresses are flexible and adaptable enough to pair with these sleep-enhancing frames. You won’t have to worry about wearing down the foam or coils as the bed adjusts, as our mattresses are crafted with high-quality materials to resist this type of damage.
If you’re interested in an adjustable base to go with your new mattress, check out our two models: the entry-level Adjustable Bed and the more luxurious Adjustable Bed+.
Like the name says, an all-foam mattress is made exclusively from layers of foam. Overall, they’re a better choice for someone who likes a more “absorbent” feel that conforms to your body.
Foam conforms to your body for a more absorbent feel.
Bio-Pur® foam features an open-cell structure to wick away warm air and keep you cool.
HIVE® technology offers five targeted comfort zones. Your head, back, and legs get more support. Your hips and shoulders get more cushion.
The absorbent feel of an all-foam mattress provides the least possible motion transfer.
A hybrid mattress combines layers of foam with a pocket-coil spring base. Overall they’re a better choice for someone who likes a mattress with more bounce and responsiveness.
Springs add more lift and bounce beneath the contouring foam top.
Pocket-coil springs add even more cooling airflow under the breathable Bio-Pur® top layer.
Proprietary zoned support system features three targeted comfort zones. It delivers more support for your back, and offers more cushion above the shoulders and below the hips.
High-density pocket-coil springs help minimize motion transfer.
100 night trial. Free shipping & returns.
