AS3

Formerly known as Liberty

The AS3 is our most versatile mattress. It evenly blends support and softness, so it’s great for people who change positions as they sleep and couples with different sleep styles. It’s also our most popular mattress overall. We combine our proprietary Bio-Pur™ and Affinity with SMT comfort layers to create a soft but responsive feel that relieves pressure points and makes you feel like you’re floating. Plus the high-performance Celliant® cover contains thermoreactive yarn to safely turn body heat into infrared. You'll love it, guaranteed.

Profile height: 12-inch Feel: Medium
Size
Price
$1399 $1199 with promo
Save $200.00
 

what a great thing

A vey supportive mattress for my severe back problems; I now get a most restful sleep and a longer one

By 

from pottstown pa

About Me Midrange Shopper

 

Improved Sleep

I purchased the AS3 earlier this summer and my sleep has improved dramatically since.

By 

from Michigan

About Me Midrange Shopper

All featured customer reviews are unaltered and verified by PowerReviews (view disclaimer).

No mattress is more carefully engineered.
  • For Back & Stomach Sleepers

  • For Side & Combo Sleepers

  • AS1

    Formerly Americana

    Firm

  • AS2

    Formerly Revere

    Medium Firm

  • AS3

    Formerly Liberty

    Medium

  • AS4

    Formerly Colonial

    Medium Soft

  • AS5

    Formerly Independence

    Soft

Too firm:
Pressure Points

(Futon mattress)

Too soft:
No support

(Pillow top mattress)

High-Performance Celliant® Cover

Celliant® is an advanced fabric made with 13 thermoreactive minerals that helps improve the performance of the mattress.

Extra-Breathable cooling layer

Our Bio-Pur™ foam is five times more breathable than traditional memory foam, because of it’s advanced open-cell structure. It wicks away heat while you sleep and can help keep you cool and comfortable.

"Feels-like-you're-floating" layer

The affinity transition layer is soft and responsive. It reacts to your body position to evenly support your weight and can help relieve pressure points, so it feels as if you’re weightlessly resting on a cloud.

Sag-free & Eco-friendly Support

Our Bio-Core™ foam support layer won't sag even after decades of use. And, like our Bio-Pur™ foam, it’s partially made from plants instead of petroleum so it’s eco-friendly.

Tested to get you more sleep.

Amerisleep mattresses are expertly designed to help you get more sleep — guaranteed. Our mattresses are built with performance in mind down to the last detail. That even includes the cover, which is a critical part of a mattress because it's the layer closest to your body when you sleep.

Amerisleep is officially licensed to use Celliant® in our covers. This advanced fabric combines 13 minerals into thermoreactive yarn that converts body heat into infrared.

We created a superior memory foam that helps keep you cool.

Traditional memory foam is made from dense material, so it traps your body heat and can make you sweaty and uncomfortable while you’re in bed — and who can sleep like that?

We developed our foam with an enhanced "open cell structure," which means there is more air space between the foam particles. That space wicks away heat while you sleep, and can keep you cooler and more comfortable. Remember, you have 100 nights to try it for yourself - if you don't love it, give us a call and we'll pick up the mattress and refund you completely!

On top of that, our foam is also the most environmentally friendly. Our patented foam-making process uses plants to replace some petroleum, and is the only manufacturing method that exceeds the standards of the Clean Air Act.

More comfort. Less “stuck”.

Our foam is also better than traditional memory foam because it recovers its shape faster. With a typical foam mattress, you often wind up “stuck” when you change positions but the mattress is still holding your previous shape. That’s because it takes around 60 seconds for the foam to bounce back.

Ours bounces back in just four seconds, so as you move at night your mattress keeps up with you, providing superior comfort.

 

Wonderful nights sleep

Was skeptic but glad I purchased :)

By 

from Harford MD

About Me Midrange Shopper

 

what a great bed !!!

This company was easy to work with and delivered everything they promised and more. Unusual these days thanks amerisleep

By 

from weare nh

About Me Midrange Shopper

All featured customer reviews are unaltered and verified by PowerReviews (view disclaimer).

Use it on any frame you want (even none!)
Directly on the floor

No furniture, no problem. You can put your Amerisleep mattress directly on the floor.

Box Spring

If you want to use your existing box spring, place a piece of 3/4” moisture resistant plywood directly on top.

Flat or slatted frame

A flat platform will work perfectly, so long as the gaps between the slats are no more than three inches apart.

Adjustable Base

Adding an adjustable base can elevate your comfort, allowing you to read or watch tv in bed.

What would you do with more energy
and less pain?

Imagine waking up each morning with no pain and increased energy. How would that change the way you approach your day? Would you finally be able exercise regularly? Would you be able to perform better at work instead of constantly feeling groggy and needing another cup of coffee?

Sleep quality is so important because we spend about a third of our lives in bed!

That means, besides our jobs and our families, our sleep probably has the biggest impact in our quality of life. The number of daily problems that go away with a good night’s sleep is astounding — but that only happens if you actually do something to improve your sleep.

If you just keep things the same, you’ll keep getting the same disappointing results. And don’t you deseve better?

 

Love the Bed!

By 

from La Crescent MN

About Me Midrange Shopper

 

Very comfortable

By 

from Columbia SC

About Me Midrange Shopper

 

Well worth the money

By 

from Tampa

About Me Midrange Shopper

 

I am sleeping again!!

By 

from tampa florida

About Me Midrange Shopper

All featured customer reviews are unaltered and verified by PowerReviews (view disclaimer).

100 Night Trial, Free Returns
Learn more about our 100 Night Sleep Trial
Sleep Trial & Warranty Information
Back to Front
 

Yes I Love it!

I'm usually a budget shopper but there are some things you cant skimp on. I have had neck back and shoulder problems for years. I knew I needed a good mattress. I read so many reviews of this mattress/company and people saying they had less pain. I 100% agree! I feel so much better when I wake up. Makes getting out of bed harder for myou husband he's been sleeping longer!

By 

from Kansas

About Me Midrange Shopper

All featured customer reviews are unaltered and verified by PowerReviews (view disclaimer).

We use more eco-friendly memory foams.
Yet another way we’re better.

Amerisleep is one of the most eco-friendly mattress companies. From the way we make our foam all the way through how it arrives at your door, we work hard to use processes that are sustainable — literally from start to finish.

First, our patented Variable Pressure Foaming (VPF) process allows us to use plant-based materials to replace some petroleum, so it's better for the environment. It also reclaims and recycles any waste, so there is no air pollution. It's the only process for making foam that meets the Clean Air Act's standards.

Once we've made your mattress, we pack it up in a box made from post-consumer materials before shipping it to your door. Being more eco-friendly is just one more thing that makes our mattresses different than our competitors.

Plant-based
Formula

Zero emissions
manufacturing

eco-box
delivery

Fast, Easy & Free Shipping

Your mattress ships to you compressed in an eco-friendly box small enough that we can use FedEx. That means it gets to you quickly, usually within a week of your purchase!

 

Bought AS3 Love it.

I love the AS3 Bed.

By 

from Fenton, Missouri

About Me Midrange Shopper

 

Best sleep in years!

After 12 years on our old mattress, we splurged in Amerisleep and am so glad we did. Back and neck pain gone!

By 

from Annapolis, MD

About Me Midrange Shopper

All featured customer reviews are unaltered and verified by PowerReviews (view disclaimer).

See what our customers have to say -
don't you wish you slept this good?

All featured customer reviews are unaltered and verified by PowerReviews (view disclaimer).

REVIEW SNAPSHOT®

by PowerReviews
AmerisleepAS3
 
4.7

(based on 3497 reviews)

Ratings Distribution

  • 5 Stars

     

    (2717)

  • 4 Stars

     

    (620)

  • 3 Stars

     

    (123)

  • 2 Stars

     

    (28)

  • 1 Stars

     

    (9)

97%

of respondents would recommend this to a friend.

Pros

  • Comfortable (3170)
  • Good support (3096)
  • Holds shape (2704)
  • Durable (2218)
  • Soft feel (2213)

Cons

  • Too hard (311)
  • Too soft (88)
  • Develops cavity (55)
  • Squeaks (15)
  • Sleeps hot (6)

Best Uses

  • Primary bed (3310)
  • Guest bed (329)
    • Reviewer Profile:
    • Midrange shopper (2474), Budget shopper (605), High-end shopper (337)

Reviewed by 3497 customers

Displaying reviews 1-10

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5.0

Just Right!

By 

from Murfreesboro, TN.

About Me Midrange Shopper

Verified Buyer

Pros

  • Comfortable
  • Good Support
  • Soft Feel

Cons

    Best Uses

    • Primary Bed

    Comments about Amerisleep AS3:

    This bed is super comfortable and just the right balance of comfortable and supportive.

    (1 of 1 customers found this review helpful)

     
    4.0

    Firm, but good bed

    By 

    from Tempe,Arizona

    About Me Midrange Shopper

    Verified Buyer

    Pros

    • Good Support

    Cons

    • Too Hard

    Best Uses

    • Primary Bed

    Comments about Amerisleep AS3:

    It took me over a month to get comfortable on this bed. I had upper back pain after switching and considered returning but after 30 days my body got used to the feel. I enjoy the support and it still feels soft despite being firm at the same time. #sweepstakes

    Service and delivery comments:

    Delivery came early, but the box was banged up. No damage to the bed however.

    (1 of 1 customers found this review helpful)

     
    5.0

    I love my mattress :)

    By 

    from Davie, Florida

    About Me Budget Shopper

    Verified Buyer

    Pros

    • Comfortable
    • Good Support
    • Soft Feel
    • Sturdy

    Cons

      Best Uses

      • Primary Bed

      Comments about Amerisleep AS3:

      I love the product since it got here in a box, it's been about 2 month now and is so confortable!!! Definitely recommended!

       
      4.0

      better than our sleep number

      By 

      from St Paul

      About Me Midrange Shopper

      Verified Buyer

      Pros

      • Good Support
      • Holds Shape

      Cons

      • Too Hard

      Best Uses

        Comments about Amerisleep AS3:

        Started out a bit too firm. Overtime it has gotten softer but still been supportive. Hopeful that it stays this firmness and doesn't begin to sag

        (1 of 1 customers found this review helpful)

         
        2.0

        Disappointed as the mattress sleeps warm

        By 

        from WI

        About Me Midrange Shopper

        Verified Buyer

        Pros

        • Comfortable
        • Good Support

        Cons

        • Way too warm

        Best Uses

        • Primary Bed

        Comments about Amerisleep AS3:

        I would recommend if not worried about sleeping warm - I've previously had a temper pedic that slept warm - thus my purchase of the Amerisleep from online research noting it sleeps cool...

        Service and delivery comments:

        Service delivery was fine

         
        5.0

        Very Comfortable

        By 

        from MI

        About Me Midrange Shopper

        Verified Buyer

        Pros

        • Comfortable
        • Good Support
        • Holds Shape
        • Soft Feel
        • Sturdy

        Cons

          Best Uses

          • Guest Bed
          • Primary Bed

          Comments about Amerisleep AS3:

          We decided to try amerisleep for a second home after decades of using a well-known competitor memory foam bed . The Amerisleep price was much better than the competitor, and reviews showed people did not find it as uncomfortably warm as the competitor's mattress.
          We thought the price was good, the reviews look good, and decided to give it a try.
          We loved how our king bed came in 2 boxes that easily fit in our small size SUV, since we were unable to have it shipped to the location it was needed.
          We were amazed at how compactly and tightly the bed was rolled. Once opened, there is no way it will fit back in the box.
          We've slept on the new beds about a month now, and agree they are both cooler and more comfortable than our the bed arrived several days earlier thanoriginal memory foam bed. We have already recommended amerisleep to a number of friends and family.

          Service and delivery comments:

          The bed arrived several days earlier than expected, we received our order very promptly and in good condition.

          (1 of 1 customers found this review helpful)

           
          5.0

          Great Mattress

          By 

          from Upstate New York

          About Me Midrange Shopper

          Verified Buyer

          Pros

          • Comfortable
          • Good Support
          • Holds Shape

          Cons

            Best Uses

            • Primary Bed

            Comments about Amerisleep AS3:

            Very glad we bought this bed. Did a lot of research, all the reviews led us to this mattress and they were correct. Have already recommended this company to friends.

            Service and delivery comments:

            Delivery was great. Setup instructions were spot on.

            (1 of 1 customers found this review helpful)

             
            5.0

            Comfortable and Well Rested

            By 

            from Reno, NV

            About Me Midrange Shopper

            Verified Buyer

            Pros

            • Comfortable
            • Good Support
            • Holds Shape
            • Soft Feel
            • Sturdy

            Cons

              Best Uses

              • Primary Bed

              Comments about Amerisleep AS3:

              We were in the market for a new mattress and did a lot of shopping around. We decided to give Amerisleep's A3 mattress a try. We loved the fact that Amerisleep had different levels of firmness rather than one or two options like most memory foam beds. The bed is comfortable, soft, and holds its shape. We would recommend to anyone to give Amerisleep a try.

               
              5.0

              Amazing nights sleep

              By 

              from Glouster Ohio

              About Me Midrange Shopper

              Verified Buyer

              Pros

              • Comfortable
              • Good Support
              • Holds Shape
              • Soft Feel
              • Sturdy

              Cons

                Best Uses

                • Guest Bed
                • Primary Bed

                Comments about Amerisleep AS3:

                Spent a lot of time reading and researching many different mattresses before choosing the AS3. So glad we choose the AS3 and would definately recommend it to others.

                Service and delivery comments:

                Mattress arrived when promised as promised. It was easy to get out of the box and kinda cool to watch it "grow" to it's full size.

                 
                3.0

                Firmer than expected.

                By 

                from San Leandro,ca

                About Me Midrange Shopper

                Verified Buyer

                Pros

                • Good Support
                • Holds Shape
                • Sturdy

                Cons

                • Too Hard

                Best Uses

                • Primary Bed

                Comments about Amerisleep AS3:

                The AS3 was firmer than expected. I am currently in the process of exchanging it for an AS4. My wife has the AS4 and it has the support and is a little softer. I have noticed that I am no longer sore in the mornings, like I was with my old mattress. Overall these mattresses are very wel built and I would recommend them.

                Service and delivery comments:

                Prompt delivery with no problems at all

                Displaying reviews 1-10

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                *Reviews

                All featured customer reviews are unaltered and verified by PowerReviews. 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.