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Amerisleep AS3

Bio-based memory foam for balanced comfort

★ 4.4 / 5.0 Editors' score

Amerisleep AS3 (Amerisleep AS3) is a Medium (5/10) memory foam mattress priced at $1749 (on sale for $1149). It rates 4.4/5 overall — 4.5 comfort, 4.4 support, 4.6 cooling, and 4.2 value. Built from Bio-Pur memory foam, 12 inches tall, with a 20 years warranty and a 100 nights sleep trial. Best for eco-conscious buyers, side sleepers, back sleepers.

Key Facts

Brand Amerisleep
Model AS3
Type Memory Foam
Price $1749 (on sale for $1149)
Firmness Medium (5/10)
Material Bio-Pur memory foam
Height 12 inches
Warranty 20 years
Sleep trial 100 nights
Overall rating 4.4 / 5.0
Last updated 2026-02-24

Rating Breakdown

4.5
Comfort
4.4
Support
4.6
Cooling
4.2
Value

Overview

The Amerisleep AS3 is a medium-firm memory foam mattress designed to provide a balanced feel of pressure relief and support. It uses the brand's proprietary Bio-Pur foam, a plant-based material that is more breathable and responsive than traditional memory foam. This construction aims to solve common issues like sleeping hot and feeling "stuck" in the bed, while still contouring to the body to alleviate aches at the shoulders, hips, and lower back. Key features include the open-cell Bio-Pur foam in the comfort layer for cooler sleep and quicker response to movement. The transition and base foam layers provide durable support and prevent excessive sinkage. The mattress is also GREENGUARD Gold certified, ensuring low chemical emissions for better indoor air quality. This model is ideal for combination sleepers, couples with differing preferences, or average-weight individuals who want a true medium feel—not too soft, not too firm. Its balanced design makes it a versatile choice for a wide range of sleepers. The main benefit is a comfortable, supportive sleep surface that sleeps temperature-neutral. A clear use case is a couple where one partner tends to sleep hot and needs pressure relief, while the other requires firmer support for back sleeping; the AS3 addresses both needs in one mattress. Its all-foam design also minimizes motion transfer, reducing sleep disturbances.

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Key Features

  • ✓Plant-based Bio-Pur foam
  • ✓HIVE transition layer
  • ✓Bio-Core base
  • ✓Celliant cover

Pros

  • ✅ Eco-friendly materials
  • ✅ Good cooling
  • ✅ 20-year warranty
  • ✅ Celliant health benefits

Cons

  • ❌ Expensive
  • ❌ May be too soft for stomach sleepers
  • ❌ Limited availability

Best For

  • →Eco-conscious buyers
  • →Side sleepers
  • →Back sleepers
  • →Those wanting bio-based foam

Compare Amerisleep AS3

memory foameco-friendlybio-basedcoolingmedium

Frequently Asked Questions

What is the Amerisleep AS3?
The Amerisleep AS3 is a medium-firm memory foam mattress designed to provide a balanced feel of pressure relief and support. It uses the brand's proprietary Bio-Pur foam, a plant-based material that is more breathable and responsive than traditional memory foam. This construction aims to solve common issues like sleeping hot and feeling "stuck" in the bed, while still contouring to the body to alleviate aches at the shoulders, hips, and lower back. Key features include the open-cell Bio-Pur foam in the comfort layer for cooler sleep and quicker response to movement. The transition and base foam layers provide durable support and prevent excessive sinkage. The mattress is also GREENGUARD Gold certified, ensuring low chemical emissions for better indoor air quality. This model is ideal for combination sleepers, couples with differing preferences, or average-weight individuals who want a true medium feel—not too soft, not too firm. Its balanced design makes it a versatile choice for a wide range of sleepers. The main benefit is a comfortable, supportive sleep surface that sleeps temperature-neutral. A clear use case is a couple where one partner tends to sleep hot and needs pressure relief, while the other requires firmer support for back sleeping; the AS3 addresses both needs in one mattress. Its all-foam design also minimizes motion transfer, reducing sleep disturbances.
How much does the Amerisleep AS3 cost?
The Amerisleep AS3 is listed at $1749 and frequently on sale for $1149.
How firm is the Amerisleep AS3?
The Amerisleep AS3 is Medium (5/10), built from Bio-Pur memory foam.
Who is the Amerisleep AS3 best for?
It is best for eco-conscious buyers, side sleepers, back sleepers, those wanting bio-based foam.
What are the downsides of the Amerisleep AS3?
Reported trade-offs include: Expensive; May be too soft for stomach sleepers; Limited availability.
What are the best Amerisleep AS3 alternatives?
See our full list of Amerisleep AS3 alternatives, with side-by-side specs, ratings, and pricing, on the Amerisleep AS3 alternatives page.

Last updated: 2026-02-24