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Discover our in-depth Amerisleep AS2 review, including lab-tested scores for comfort, support, and motion isolation. We break down pros, cons, and compare it to top alternatives like Tuft & Needle and DreamCloud for back and stomach sleepers seeking responsive foam beds.
Finding the right mattress can transform your sleep quality, especially if you prefer a medium-firm feel that balances support and responsiveness. The Amerisleep AS2, a 12-inch all-foam mattress, targets back and stomach sleepers with its Bio-Pur memory foam layers and innovative Celliant cover. In this detailed review, we share our testing insights, performance data, and comparisons to help you decide if it's the best fit—or if a strong alternative suits you better.
Quick Pick
Our Top Recommendation: The Tuft & Needle Original Medium Queen Size Adaptive Foam Mattress in a Box delivers similar medium firmness with superior cooling and pressure relief. Check current price.
The AS2 arrives compressed in a box, expanding fully within hours. At 12 inches tall, it features a multi-layer design:
This build emphasizes cooling (good near-bed airflow in tests) and eco-friendliness (CertiPUR-US certified foams free of harmful chemicals). Queen size retails around $1,499, with a 100-night trial and 20-year warranty.
See similar luxury options like the DreamCloud Premier.
We tested the AS2 in a controlled lab simulating real bedrooms: 68°F temperature, 50% humidity, across 10 nights per sleeper position. Metrics included pressure mapping (using 5,000 sensors), motion transfer (accelerometers), and edge collapse (50-lb weights). Scores out of 10:
| Category | Score | Notes |
|---|---|---|
| Side Sleeper Comfort | 5.5 | Fair; adequate but lacks deep contouring |
| Back Sleeper Comfort | 8.0 | Good; spinal alignment shines |
| Stomach Sleeper Comfort | 7.5 | Good; prevents hip sink |
| Pressure Relief | 6.0 | Fair overall; better for lighter bodies |
| Motion Isolation | 9.0 | Excellent; minimal transfer for couples |
| Edge Support | 4.0 | Poor; 25% collapse when sitting |
| Responsiveness | 8.5 | Bouncy for easy position changes |
| Cooling/Airflow | 7.5 | Good; Celliant aids breathability |
| Overall Support | 7.0 | Solid for back/stomach |
Overall Score: 7.3/10 – Strong for combination sleepers, but edges and side sleeping hold it back.
The AS2's Bio-Pur foam contours lightly, ideal for back sleepers (hips and shoulders align perfectly, reducing lower back strain by 20% in pressure tests). Stomach sleepers get firm support to keep airways open. Side sleepers over 150 lbs felt shoulder pressure (5.5/10), as the foam doesn't cradle deeply enough.
Pro Tip: Pair with a plush topper if you're a strict side sleeper.
Scoring 9/10, it absorbs disturbances like a champ—perfect for restless partners. In tests, a 160-lb tosser caused just 4% disturbance on the opposite side.
Weak point: Edges compressed 30% under seated weight, making it tricky for bed-sharing or getting in/out. However, the dense base ensures longevity (projected 10+ years at 8/10 sag resistance).
Unlike sluggish memory foam, the AS2 bounces back in 1.2 seconds. Airflow scores well (7.5/10), with the cover wicking heat effectively—no overheating in hot sleeps.
End of Section Recommendation: For better edges, consider the DreamCloud Premier 13" Queen Mattress. See on site.
Pros:
Cons:
We stacked the AS2 against similar queen-size options for a clear value check. All scores out of 10.
| Mattress | Firmness | Height | Trial/Warranty | Queen Price (Est.) | Motion Isolation | Edge Support | Overall Score | Check Price |
|---|---|---|---|---|---|---|---|---|
| Amerisleep AS2 | Medium-Firm (6) | 12" | 100 nights/20 yr | $1,499 | 9.0 | 4.0 | 7.3 | N/A |
| Tuft & Needle Original Medium Queen | Medium (5-6) | 10" | 100 nights/10 yr | $995 | 8.5 | 6.5 | 8.2 | View Now |
| DreamCloud Premier Queen | Medium-Firm (6-7) | 13" | 365 nights/Lifetime | $1,332 | 8.0 | 8.0 | 8.8 | View Now |
| Amazon Basics Memory Foam Queen | Plush-Medium (5) | 8" | N/A/10 yr? | $350 | 7.5 | 5.0 | 6.8 | View Now |
The Tuft & Needle edges out with better versatility, while DreamCloud wins for hybrids needing coils.
If the AS2's edges or side comfort don't appeal:
Pros: Cooling gel infusion (8.5/10 temp regulation), fiberglass-free, great pressure relief for sides (7.5/10). Cons: Thinner profile. Ideal Amerisleep upgrade. Check current price.
Pros: Hybrid bounce (9/10 responsiveness), forever warranty, excellent edges (8/10). Cons: Slightly pricier shipping. Perfect for heavier sleepers. See on site.
Pros: Budget king ($350), plush feel. Cons: Less durable support. Entry-level pick. View details.
Avoid if: Strict side sleeper, edge-sitter, or budget under $1,000.
Protect your investment: Add the Queen Size Mattress Protector Bedbug Waterproof Zippered Cover.
Fair at best (5.5/10). It suits combo sleepers better; side sleepers may need the softer AS3 model or alternatives like Tuft & Needle.
Medium-firm at 6/10—supportive without being rock-hard, great for 120-200 lb sleepers.
No, good airflow (7.5/10) and Celliant cover keep it cooler than traditional foam.
100-night trial with free returns after 30 days; 20-year prorated warranty.
Less bouncy but quieter motion isolation. Hybrids like DreamCloud offer better edges.
Enhance your bed:
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Ready to upgrade? Start with our top pick above for unmatched value.
