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 $1299 with promo
Save 7% ($100.00)
 

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

 

Great Sleeping Experience on Liberty Bed

It's been a great sleeping experience.

By 

from O'Fallon IL

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!

 

Liberty Bed

very comfortable sleep like a baby

By 

from Charlotte NC

About Me Midrange Shopper

 

Revelation

We haven't slept this well in years. Sometimes I find myself staying in bed not because I'm tired but because it's just soooo comfortable.

By 

from oregon

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 2345 reviews)

Ratings Distribution

  • 5 Stars

     

    (1824)

  • 4 Stars

     

    (414)

  • 3 Stars

     

    (86)

  • 2 Stars

     

    (15)

  • 1 Stars

     

    (6)

98%

of respondents would recommend this to a friend.

Pros

  • Comfortable (2132)
  • Good support (2082)
  • Holds shape (1828)
  • Soft feel (1490)
  • Durable (1487)

Cons

  • Too hard (210)
  • Too soft (63)
  • Develops cavity (38)
  • Squeaks (10)
  • Firmer than expected (4)

Best Uses

  • Primary bed (2225)
  • Guest bed (220)
    • Reviewer Profile:
    • Midrange shopper (1659), Budget shopper (402), High-end shopper (226)

Reviewed by 2345 customers

Displaying reviews 1-10

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5.0

I love my Amerisleep Liberty bed. It's so comfortable!!

By 

from Manahawkin NJ

About Me Midrange Shopper

Verified Buyer

Pros

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

Cons

    Best Uses

    • Primary Bed

    Comments about Amerisleep AS3:

    Love my new bed.

     
    5.0

    Best mattress I've ever owned! Best investment I've made!

    By 

    from Lone Tree Colorado

    About Me Budget Shopper

    Verified Buyer

    Pros

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

    Cons

      Best Uses

      • Primary Bed

      Comments about Amerisleep AS3:

      Wasn't sleeping well till now

       
      5.0

      Fantastic Mattress - No More Back Pain!

      By 

      from Boston, MA

      About Me Midrange Shopper

      Verified Buyer

      Pros

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

      Cons

        Best Uses

        • Primary Bed

        Comments about Amerisleep AS3:

        Absolutely recommend! I ordered the Liberty mattress online after reviewing many different brands and providers. Amerisleep stood out from the competition based on their quality of design and innovative technology, but most importantly their commitment to eco-friendly materials and awareness of the products environmental footprint. Combine that with their ease of online shopping and 100 night guarantee returns, Amerisleep is bar none a step above the rest.

        I bought the Liberty mattress with the sole purpose to combat bad back pain. By the end of the first weeks rest I noticed a significant reduction in back pain and a much less restless sleep - regardless of which position I slept in!

         
        5.0

        Best Sleep in Years!

        By 

        from Virginia Beach, VA

        About Me Budget Shopper

        Verified Buyer

        Pros

        • Comfortable
        • Good Support
        • Holds Shape

        Cons

        • None

        Best Uses

        • Primary Bed

        Comments about Amerisleep AS3:

        We've tried numerous mattresses over the years, but the Liberty is the best one yet!

         
        5.0

        I would buy this bed again in a heartbeat

        By 

        from Kearney, NE

        About Me Midrange Shopper

        Verified Buyer

        Pros

        • Comfortable
        • Good Support

        Cons

          Best Uses

          • Primary Bed

          Comments about Amerisleep AS3:

          I have had 2 back surgeries and my wife has back problems too. We both slept better the first night than we had in a long long time. I would recommend this to anyone - especially those who have back issues

           
          4.0

          I did lots of research before buying

          By 

          from San Diego CA

          About Me Midrange Shopper

          Verified Buyer

          Pros

          • Good Support
          • Soft Feel

          Cons

          • Too Soft

          Best Uses

          • Primary Bed

          Comments about Amerisleep AS3:

          I have a very serious back problem and have difficulty getting out of bed for over 3 years. I knew I needed a new bed and did tons of research. Even though the bed I chose was not this one at amerisleep, it was the next level up in firmness, because I sleep on my side the person who took my order suggested this one. I should have gotten the one I wanted because it was just too soft. I started having shoulder pain and pain in my middle back, where I had only had pain in my low back before. I feel certain that the harder mattress would have worked for me but I didn't want to risk returning another mattress and having it go to waste. In California it is hard to donate mattresses that are returned and some end up at the dump ☹️ I wouldn't want to do that twice and waste all those resources. The return was easy and they sent someone that week to pick it up, I sent pictures of the receipt and they sent a credit right away.

          Service and delivery comments:

          It's heavy so make sure you have it on the bed when you unroll it. Received quickly, customer service was great, much better then I expected even to return it.

           
          5.0

          best night sleep

          By 

          from Rochester Hills, Mi

          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 are getting the best sleep with this bed. We purchased it to support my husband's back who had back surgery. He feels it totally supports his body and loves our new bed. I have never said I love a bed but I do love this one.

            Service and delivery comments:

            Yes prompt and no problems

             
            5.0

            Very satisfied!!!

            By 

            from Purvis ms

            About Me Budget Shopper

            Verified Buyer

            Pros

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

            Cons

              Best Uses

              • Primary Bed

              Comments about Amerisleep AS3:

              We sleep on this mattress every night and we live it!

              Service and delivery comments:

              Prompt delivery!

               
              5.0

              Back pain GONE in 1 week...Amazing product

              By 

              from Lewes DE

              About Me High-end Shopper

              Verified Buyer

              Pros

              • Comfortable

              Cons

                Best Uses

                  Comments about Amerisleep AS3:

                  This bed is fantastic. I have always had a traditional box spring bed. I have been waking up with lower back pain for 2 years. I finally got rid of my Sterns and Foster king size bed that cost $1800 and was only 4 years old. After one week sleeping on this memory foam bed my back began to recover. I have been sleeping on it for almost 2 months now and when I wake up I feel GREAT. No more pain.....well worth every penny.
                  I got this in king size and my wife and our Dalmation both love it also.
                  Kevin Keller

                  Service and delivery comments:

                  Shipped a king size mattress in a manageable size box. Drug it up 3 flights of stairs to the master bedroom popped it open and Pooof !!! instant bed.

                  • I Am A:
                  • Couple No Kids
                   
                  4.0

                  My new mattress

                  By 

                  from Lake Arrowhead, CA

                  About Me Midrange Shopper

                  Verified Buyer

                  Pros

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

                  Cons

                    Best Uses

                    • Primary Bed

                    Comments about Amerisleep AS3:

                    My personal mattress

                    Service and delivery comments:

                    Delivery man did not knock

                    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.