Amerisleep AS3 Mattress Review

Ryan Fiorenzi, BS, Certified Sleep Science Coach - Updated on March 22nd, 2023

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Amerisleep AS3 Mattress

Start Sleeping Editor Approved Mattress
Back and Side
100 Nights


Amerisleep AS3 Mattress - Amerisleep AS3 Mattress Review

Why We Like It

The Amerisleep AS3 Mattress is an excellent foam mattress with great performance in all the elements we look for in foam mattresses from contouring to weight leveling to support and firmness. While we don't believe mattresses are a one size fits all, the Amerisleep AS3 does have some wide appeal. In our testing we found it to provide an equal level of comfort, support, and spine alignment for two different weight sleepers in both back and side sleeping. This makes the AS3 a good choice for combination sleepers, couples with different weights, or sleeping positions. On top of this, we found it to be fairly proficient at cooling considering it's still an all-foam mattress.

  • Unique three layer design with a Hive middle layer that has 5 different zones that provide support to different parts of your body.
  • 20 year warranty and 100-night free trial with free returns.
  • Bio-Pur open cell foam comfort layer that aids cooling
  • Breathable outer cover
  • Periodically discounted
  • Price may be too expensive for many but if you follow Amerisleep promotions you may be able to get a $200 or $300 discount, especially around holidays.
  • Edge support is a little lacking in our testing but the overall firmness of the mattress still provides enough edge support to prevent that rolling off the bed effect if you sleep near the edge.

Sleep Position Analysis

Back Sleeping - 125 pounds: Great support, contouring, leveling and spine alignment (admittedly our tester could have benefited from a thinner pillow)

Back Sleeping 125 Pounds - Amerisleep AS3 Mattress Review
Side Sleeping - 125 pounds: Great contouring, leveling, support and spine alignment
Side Sleeping 125 Pounds - Amerisleep AS3 Mattress Review
Back Sleeping - 215 pounds: Great performance all around
Back Sleeping 215 Pounds - Amerisleep AS3 Mattress Review
Side Sleeping - 215 pounds: Great all around support, spine alignment and weight leveling, super comfortable for a heavier side sleeper
Side Sleeping 215 Pounds - Amerisleep AS3 Mattress Review

Mattress Details

Below are some deeper details about the Amerisleep AS3 mattress.

Manufacturer Amerisleep
Model Name AS3
Ideal Sleeping Position(s) Back & Side
Available In One Thickness
Mattress Dimensions 60 x 80 x 12
Mattress Weight 88 lb.
Weight Limit 800 lb.
Overall Density (lb/cubic square foot) 2.64 (lb/cu ft)
Type Foam
Materials PU Foam
Construction 2" Bio-Pur outer layer, 2" Hive transition layer, 8" Bio-Core base layer
Edge Support Good
Cooling Ultra-breathable outer cover with open cell outer foam layer with Hive transition layer with channels for air flow
Certification CertiPUR-US®
Cover Ultra-breathable outer cover
Trial 100 Nights
Warranty From Amerisleep: 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.
Returns Call (800-500-4233) or email ( their support team. They'll arrange to have someone pick up and recycle your mattress. Then, they'll issue a full refund. Exchanges are available for different models too.
Customer service Very Good

Amerisleep AS3 Mattress FAQ

Here are the answers to our most frequently asked questions about the Amerisleep AS3 mattress.

The queen size Amerisleep AS3 mattress costs $1,499. The standard Amerisleep AS3 mattress retail price for the king is $1,899 and for the twin size, it is $1,129.