by The Amerisleep AS2 is the firmest popular model in Amerisleep's lineup -- designed for stomach sleepers, back sleepers who need extra support, and anyone who finds most mattresses too soft.
Amerisleep AS2: Quick Verdict
Best for: Stomach sleepers, back sleepers, heavier individuals (200+ lbs)
Firmness: Medium-Firm (6.5/10)
Price (Queen): $1,199
Trial: 100 nights | Warranty: 20 years
Construction: 3-Layer System
- 2" Bio-Pur foam (top): Plant-based memory foam. Sleeps cooler than standard petroleum-based memory foam.
- 2" HIVE technology: Hexagonal cutouts that provide zoned support -- firmer under hips/torso, softer under shoulders.
- 7" Bio-Core support base: Dense high-density foam that prevents sagging. Backs the 20-year warranty.
AS2 vs Other Amerisleep Models
| Model | Firmness | Best For | Price (Queen) |
|---|---|---|---|
| AS1 | Firm (8/10) | Strict stomach sleepers | $1,049 |
| AS2 | Medium-Firm (6.5/10) | Stomach + back sleepers, 200+ lbs | $1,199 |
| AS3 | Medium (5/10) | Side + back sleepers, couples | $1,299 |
| AS4 | Medium-Soft (4/10) | Side sleepers, pressure relief | $1,399 |
| AS5 | Soft (3/10) | Strict side sleepers, lightweight | $1,499 |
Who the AS2 Is Right For
- Stomach sleepers: Firm surface keeps hips from sinking, preventing lower back hyperextension
- Back sleepers needing extra support: Lumbar area gets consistent support without the mattress giving
- Sleepers over 200 lbs: Heavier individuals compress foam deeper; medium-firm reaches the right support level
Final Verdict
The Amerisleep AS2 is one of the best firm foam mattresses available -- the 20-year warranty alone justifies the price for buyers planning to keep the mattress a decade or more. For a softer feel, the AS3 is Amerisleep's most popular model and suits a wider range of sleepers.
Plant-Based Foam Alternative
Amerisleep AS3 — From $1,049 Queen
Bio-Pur plant-based foam, 100-night trial, 20-year warranty. Universal medium-firm feel.
Frequently Asked Questions
Is the Amerisleep AS2 good for back pain?
Yes, for back pain caused by insufficient support. The AS2's medium-firm feel and HIVE zoning provide consistent lumbar support for back and stomach sleepers. For pressure-related back pain, the AS3 or AS4 may be better.
How does the Amerisleep AS2 compare to the AS3?
The AS2 is firmer (6.5/10 vs 5/10) and $100 cheaper. The AS3 is Amerisleep's most popular model and suits more sleepers including side sleepers. Choose AS2 for strict stomach or back sleeping; AS3 if you're unsure or sleep on your side.
Does the Amerisleep AS2 sleep hot?
Less than most memory foam mattresses. The plant-based Bio-Pur foam sleeps cooler than petroleum-based memory foam, and the HIVE hexagonal cutouts promote airflow. Still warmer than a hybrid or latex mattress.