by Amerisleep AS3
Bio-Pur plant memory foam with HIVE zoned support. Best all-around mattress for combination and side sleepers — medium 5/10 with measurable hip and lumbar support. 100-night trial, 20-year warranty.
Amerisleep Mattress Reviews 2026
Independent sleep-lab tests of every Amerisleep model. Plant-based Bio-Pur foam, HIVE zoned support, 20-year warranty, 100-night trial.
Why Amerisleep Wins Our 2026 Tests
After 30+ nights testing each Amerisleep model in our climate-controlled sleep lab, three findings consistently rise to the top:
- Bio-Pur® plant memory foam runs measurably cooler than petroleum-based memory foam (heat-pad test: +1.4°F vs ambient at 8 hours, vs +3.8°F for traditional foam)
- HIVE® zoned support delivers the strongest lumbar alignment we've measured in an all-foam mattress at this price tier
- 20-year warranty + 100-night trial are the most generous terms in the $1,000-$2,000 segment
Amerisleep AS Series — Direct Comparison
| Model | Firmness | Best For | Height | Price (Queen) | Lab Score |
|---|---|---|---|---|---|
| AS1 | Firm 7/10 | Stomach sleepers, budget firm | 10" | $849 | 8.8/10 |
| AS2 | Medium-firm 6/10 | Back/stomach combo, light sleepers | 12" | $1049 | 9.0/10 |
| AS3 — #1 Memory Foam | Medium 5/10 | Combination/side sleepers, hip pain | 12" | $1449 | 9.5/10 |
| AS5 Hybrid — Heavy/Couples | Soft 3/10 | Side sleepers, couples, 250+ lbs | 14" | $1849 | 9.6/10 |
Detailed Brand Reviews
Amerisleep AS2 Review
Medium-firm 6/10 plant-foam mattress for back and stomach sleepers. Bio-Pur top layer, HFR transition foam, supportive base. $1049 queen, 100-night trial.
Amerisleep AS3 Review
Our 2026 #1 memory foam mattress. Medium 5/10 with Bio-Pur and HIVE zoned support. Best for combination and side sleepers. 9.5/10 lab score.
Amerisleep AS4 Review
The former AS4 model has been consolidated into the upgraded AS3. This guide covers the transition and what to expect from the new AS3.
Amerisleep AS5 Review
Hybrid model with Bio-Pur and Active Flex layer. Soft 3/10, 14" tall. Best for side sleepers, couples, and heavier sleepers. 9.6/10 lab score.
Amerisleep vs Competitors — All Comparisons
Amerisleep vs Purple
Bio-Pur plant foam vs Purple GelFlex Grid. Pricing, feel, and pressure relief compared.
Amerisleep vs Casper
AS3 vs Casper Original — head-to-head on cooling, edge support, and warranty.
Amerisleep vs Tempur-Pedic
AS3 vs Tempur ProAdapt. Half the price, comparable pressure relief.
Amerisleep vs Nectar
AS3 vs Nectar Memory Foam. Plant foam vs petroleum, lab data inside.
Amerisleep vs Tuft & Needle
Bio-Pur vs T&N Adaptive Foam. Cooling, durability, warranty terms.
Amerisleep vs GhostBed
AS3 vs GhostBed Classic — latex-on-foam vs plant memory foam.
AS3 vs AS5
Picking between Amerisleep's two flagship models — firmness, height, price, who each model fits.
Puffy vs Amerisleep
Puffy Original vs AS3 — foam composition, cooling, warranty terms.
Tempur-Pedic vs Amerisleep
Detailed pressure relief and cooling comparison — AS3 wins on price, Tempur wins on conforming feel.
PlushBeds vs Amerisleep
PlushBeds Botanical Bliss latex vs AS5 Hybrid — for side sleepers and couples.
SweetNight vs Amerisleep
Budget memory foam vs Bio-Pur plant memory foam. Lab data inside.
Frequently Asked Questions
Is Amerisleep worth the money?
Based on our 30+ night testing, yes. The AS3 ($1449 queen) outperforms competitors in the $1,000-$2,000 price tier on cooling (Bio-Pur plant foam runs cooler than petroleum), pressure relief (HIVE zoning measurable improvements), and warranty terms (20-year vs typical 10-year coverage).
Where are Amerisleep mattresses made?
All Amerisleep mattresses are designed and manufactured in the United States.
How does Amerisleep's 100-night trial work?
You sleep on the mattress for at least 30 nights to allow your body to adjust. If at any point during the 100-night trial period you decide it's not the right fit, contact Amerisleep for a full refund. No restocking fees.
What's the difference between Amerisleep AS3 and AS5?
The AS3 is medium-firm 5/10, all-foam, 12" tall, $1449 queen — ideal for combination and side sleepers. The AS5 is soft 3/10, hybrid (foam + coil), 14" tall, $1849 queen — ideal for side sleepers, couples, and heavier sleepers (250+ lbs).
How does Amerisleep compare to Tempur-Pedic?
The AS3 ($1449) competes directly with the Tempur ProAdapt ($2799). In our tests, the AS3 matches the ProAdapt on pressure relief and beats it on cooling (plant Bio-Pur vs petroleum-based Tempur foam). Tempur has the edge on conforming feel; AS3 has the edge on price and warranty terms.
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