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Amerisleep AS3

Owners Rating

Product description from Amerisleep:

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 thermo-reactive yarn to safely turn body heat into infrared.

Celliant is an advanced fabric made with 13 thermo-reactive minerals that helps improve the performance of the mattress.

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.

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.

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.

In 2017 Amerisleep changed their model names, at which time the Amerisleep AS3 became the new name for the mattress that was previously called the Amerisleep Liberty.

Bottom Line Is this a good bed for you?

Fit: Recommended for people who...

Prefer to sleep on their side
Prefer to sleep on their back
Prefer to sleep on their stomach
Prefer medium softness

Function: Rated for its...

Motion Isolation
Pressure Relief

Features: Contains...

  • Foam
  • Memory Foam
See specs for the AS3 »
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Reviews AS3

The Amerisleep AS3 mattress model is recommended by 56% of owners on GoodBed (based on 18 ratings).

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Model Features AS3

Support Core:
Comfort Level:
Surface Type:


Special Characteristics:


Overall Build
  • No-Flip
  • Works with an adjustable base
  • Mattress Thickness: 12"
Which mattress from Amerisleep is best for you?

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About this Model AS3

Active (released 2017) (edit this)
Model Name:

Additional Information AS3


The AS3 is an unquilted foam core medium mattress model released in 2017 that is manufactured by Amerisleep.

Editor's Note(s):

  • The Amerisleep AS3 was previously known as the Amerisleep Liberty.


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