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Amerisleep AS2 Mattress Review: Firm Support for Back Sleepers
The Amerisleep AS2 is a medium-firm memory foam mattress designed for back and stomach sleepers. It uses a plant-based Bio-Pur foam top layer for a responsive, cooler sleep surface. The high-density support core keeps the spine aligned. This mattress suits those who want a firmer feel with some contouring.
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The Amerisleep AS2 offers a solid balance of support and comfort for back sleepers. Its medium-firm feel and zoned support help maintain proper spinal alignment. If you prefer a plush, sinking memory foam feel, look elsewhere. This is a quality, durable choice for firmness seekers.
How it scores
The good and the annoying
- Medium-firm feel supports back and stomach sleepers
- Bio-Pur foam runs cooler than traditional memory foam
- Zoned support helps keep hips and shoulders aligned
- High-density base foam adds durability
- Too firm for side sleepers who need extra pressure relief
- Heavier than some competitors, making setup awkward
- No built-in handles for easy repositioning
The Amerisleep AS2 is a medium-firm memory foam mattress designed for back and stomach sleepers. It uses a plant-based Bio-Pur foam top layer for a responsive, cooler sleep surface. The high-density support core keeps the spine aligned. This mattress suits those who want a firmer feel with some contouring.
What makes the AS2 different?
The AS2 stands out with its Bio-Pur foam, which is derived from plant oils. This foam is more responsive than traditional memory foam, so you don't feel stuck. It also has an open-cell structure that promotes airflow. The HIVE transition layer provides zoned support, firmer under the hips and softer at the shoulders. This design aims to keep your spine neutral.
How does it feel for back sleepers?
Back sleepers typically need a mattress that supports the lower back without excessive sinkage. The AS2's medium-firm feel offers a good balance. Owners report that it keeps the hips from dipping too much, which helps with alignment. The top layer contours slightly, but not enough to cause a hammock effect. This makes it a reliable choice for most back sleepers.
Is it good for couples?
Yes, the AS2 performs well for couples due to excellent motion isolation. The foam absorbs movement, so a partner's tossing and turning won't disturb you. It also has minimal noise, which is a plus. However, the edges are not reinforced, so sitting on the edge may cause some compression. If you need strong edge support, consider a hybrid.
How does it handle temperature?
The Bio-Pur foam is designed to sleep cooler than traditional memory foam. Its open-cell structure allows heat to dissipate. Some owners still report warmth, but not excessive. If you are a very hot sleeper, you might need a cooling mattress cover. Overall, it runs neutral to slightly warm.
Specs that matter
| Type | Memory foam |
| Firmness | Medium-firm (6.5/10) |
| Thickness | 12 inches |
| Layers | Bio-Pur foam, HIVE transition layer, high-density support foam |
| Warranty | 20-year limited |
| Trial | 100 nights |
Buy the Amerisleep AS2 if you are a back or stomach sleeper who wants a firm, supportive mattress with some contouring and cooling.
Skip it if you are a side sleeper or prefer a plush, pillow-top feel with deep pressure relief.
Questions before you buy
Is the Amerisleep AS2 good for back pain?
Many owners with lower back pain report relief. The medium-firm support helps keep the spine aligned. However, results vary. If you have severe pain, consult a doctor.
How firm is the AS2 on a scale of 1 to 10?
Most owners rate it around 6.5 to 7. That is medium-firm. It is firmer than average but not rock hard.
Does the AS2 sleep hot?
It sleeps cooler than many memory foam mattresses. The Bio-Pur foam is breathable. Still, if you are a very hot sleeper, you might want a cooling topper.
What is the return policy?
Amerisleep offers a 100-night trial. If you don't like it, they arrange pickup and a full refund. That is standard.
How long does the AS2 last?
With a high-density support core, it should last 7 to 10 years. The 20-year warranty covers defects. Proper care extends its life.
Does the AS2 have fiberglass?
No, it does not contain fiberglass. It uses a polyester and cotton cover. That is safer for your home.
Can you flip the AS2?
No, it is a one-sided mattress. You should not flip it. Rotate it head to foot every few months to prevent sagging.
Is the AS2 good for heavy people?
It can support up to 300 pounds per sleeper. Heavier individuals might find it too soft. Consider a firmer model like the AS3.
