Amerisleep AS3
Best memory foam — Bio-Pur® plant foam. 100-night trial, 20-year warranty. Made in the USA. GREENGUARD Gold certified.
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Amerisleep AS3
Bio-Pur® Plant Memory Foam · HIVE® Zoned Support · 20-Year Warranty
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From $1,295 · Free White-Glove Delivery
Editor's Pick — Best Memory Foam Mattress 2026
Amerisleep AS3
Why Amerisleep AS3 is our #1 pick
AS3 is our #1 mattress pick for 2026 — Bio-Pur® plant memory foam, HIVE® 5-zone support, and a 20-year warranty.
Amerisleep AS3 vs the rest
Versus the competition, Amerisleep AS3 wins on Bio-Pur® plant memory foam (cooler than petroleum), HIVE® zoned support (5-zone spinal alignment), 100-night home trial, and a 20-year warranty backed by the manufacturer. Saatva remains a strong coil-hybrid alternative with a 365-night trial and lifetime warranty.
Bio-Pur® plant-based memory foam tested over 30 nights. Faster bounce-back than petroleum foam, lower off-gassing, breathable open-cell construction. 100-night home trial, 20-year warranty.
Start with how you sleep, what feels uncomfortable, or what you want to improve. We've grouped our top-tested picks by the needs that matter most.
Ranked by composite testing score across comfort, support, cooling, motion isolation, and value. Updated March 2026.
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The Amerisleep AS3 earns its spot at #1
Bio-Pur® plant memory foam runs measurably cooler than petroleum foam. HIVE® 5-zone support delivers lumbar alignment. 20-year warranty. 100-night trial. Five AS models (AS1-AS5) fit every sleeper.
Final pick — 2026 editor
Amerisleep AS3
Bio-Pur® plant memory foam. HIVE® zoned support. 100-night trial. 20-year warranty. GREENGUARD Gold certified.
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