AS3 Hybrid

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MEDIUM FEEL Profile height: 12-inch

Risk-free, 100-night trial

20-year warranty

Free shipping & returns

Made in USA

AS3 Hybrid

Why you'll love it

The AS3 is our best-selling mattress. It’s tailored to adapt to most body types and sleep styles. Its perfect “medium” feel uses an even mix of comfort and support to relieve pain-causing pressure points and support healthy sleeping positions.

Enjoy weightless, cooling sleep with the AS3 Hybrid. We combine sleep-promoting foam layers with bouncy pocketed coils to cradle your body and keep you lifted in healthy alignment.

  • Plant-based Bio-Pur® memory foam is cooling, responsive, and pressure-relieving
  • HIVE® technology provides zoned comfort and support, creating a weightless feel
  • Balanced comfort and support ideal for side and combo sleepers
  • Plant-based Bio-Pur® memory foam is cooling, responsive, and pressure-relieving
  • Zoned pocketed coils provide dynamic, targeted support to increase comfort
  • Durable edge foam offers extra support
  • Free, no contact fast shipping
  • 100-night, risk-free sleep trial
  • Easy and free returns
  • 20-year warranty
  • Made in the USA
  • Free, no contact fast shipping
  • 100-night, risk-free sleep trial
  • Easy and free returns
  • 20-year warranty
  • Made in the USA
  • Twin (38" x 74") $1084 $1549
  • Twin XL (38" x 80") $1119 $1599
  • Full (54" x 75") $1259 $1799
  • Queen (60" x 80") $1399 $1999
  • King (76" x 80") $1696 $2424
  • California King (72" x 84") $1696 $2424
  • Split King (38" x 80" - 2) $2238 $3198
AS3 All Foam
AS3h Hybrid (Foam + Coils)
$1999 $1399.30 with promo
save 30%
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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

Wind icon

More breathable than traditional foam

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.

Zoned comfort icon

Soothing pressure point relief

Pressure point icon

More responsive than traditional foam

Inside the AS3 h

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.

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”

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.

Stable edges to get out of bed easier

A firmer perimeter helps with mattress durability and makes getting in and out of bed easier.

Targeted pressure relief system

Patented zoned support system improves alignment by reducing pain-causing pressure points and adding more support where you need it most.

Boosted support & structure for integrity

Thin layer of transition foam used for added comfort and structure for a more durable and resilient base.

The AS3 Hybrid is your answer to back pain, neck pain, stiffness, soreness, and stress

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 coils cover Amerisleep hybrid coils

Is a hybrid right for you?

Amerisleep Hybrid models are designed to offer more support, airflow, and durability.

More bounce

More bounce

Pocket-coil springs provide responsive support with more bounce.

Extra airflow

Extra airflow

Individual coils allow extra airflow beneath the upper foam layers to keep you cool.

Limited motion

Limited motion transfer

Individual coils limit motion transfer and provide more localized cushion.

Durable support

Durable support

Our spring layer features durable pocket-coils that won’t sag or develop soft spots.

Enjoy deeper sleep and more daily energy. Try the AS3 Hybrid for 100 nights.
100 Night Trial
Risk-free, 100-night trial
with free shipping & returns


Available sizes
  • Twin 38" W x 74" L x 12" H
  • Twin XL 38" W x 80" L x 12" H
  • Full 54" W x 75" L x 12" H
  • Queen 60" W x 80" L x 12" H
  • King 76" W x 80" L x 12" H
  • Cal King 72" W x 84" L x 12" H
  • Split King 38" W x 80" L x 12" 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.


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+.

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

Reviews before January 2020 refer to our AS3 mattress only. Reviews afterward may include our AS3h.

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


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

Why is the Amerisleep AS3 so popular?

The AS3 model has a balanced feel suitable for the majority of sleepers. Side, back, and combination sleepers can all rest well and wake up feeling refreshed. This is why our AS3 mattress is our most popular model and why we recommend it for couples interested in sharing a bed.

Who are medium mattresses good for?

Medium feel mattresses are almost universally comfortable. Side, back, and combination sleepers can usually rest well on medium mattresses. Couples with conflicting sleep styles, such as a side and back sleeper, can usually compromise with a medium feel mattress and still rest peacefully.

Is the AS3 comfy for sleepers over 250 pounds?

Yes, our AS3 mattress can provide comfort for plus-size sleepers. We recommend it for side and combination sleepers because of its delicate balance between cushion and support. Conversely, we don’t recommend it for plus-size stomach and back sleepers.

Heavyset back and stomach sleepers may sink too far into the AS3 mattress because of how their position distributes their bodyweight. A firmer feel can prevent sinkage, so we recommend our AS2 or AS1 mattress for stomach and back sleepers over 250 pounds.

Can the Amerisleep AS3 help sleepers with back pain?

Yes, the AS3 memory foam and hybrid models can help a side sleeper experiencing back pain rest well because the balanced feel cushions a side sleeper’s shoulders and hips while supporting the spine’s neutral alignment.

However, the AS3 mattress may not be right for back sleepers experiencing back pain. Back sleepers may find it feels too soft and allows their spine to bow too far into the mattress. For back sleepers, we recommend our AS2 mattress.

What does the 20-year mattress warranty cover?

We cover structural or manufacturing defects, along with any sagging that exceeds 0.75 inches. Our warranty starts on the day a mattress is purchased and applies only to the original owner.

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