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Amerisleep AS3 Mattress Review: Best for Combo Sleepers
The Amerisleep AS3 is a medium-firm memory foam mattress designed for combination sleepers. It balances pressure relief with responsiveness, making position changes easy. Its standout trait is the breathable cover and open-cell foam that help regulate temperature. This mattress suits those who switch positions at night and want a single bed that works for all sleeping styles.
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The Amerisleep AS3 is a solid choice for combination sleepers who need a responsive yet pressure-relieving surface. Its medium feel and cooling features address common complaints about memory foam. We recommend it for couples with different sleep positions, as it offers a good compromise.
How it scores
The good and the annoying
- Medium feel suits all sleeping positions
- Open-cell foam promotes airflow
- Excellent motion isolation for couples
- CertiPUR-US certified foams
- Edge support is weaker than innersprings
- May sleep warm for hot sleepers
- No built-in cooling gel layer
The Amerisleep AS3 is a medium-firm memory foam mattress designed for combination sleepers. It balances pressure relief with responsiveness, making position changes easy. Its standout trait is the breathable cover and open-cell foam that help regulate temperature. This mattress suits those who switch positions at night and want a single bed that works for all sleeping styles.
Who is the Amerisleep AS3 for?
The Amerisleep AS3 targets combination sleepers who change positions during the night. Its medium firmness provides a balance between cushioning for side sleepers and support for back and stomach sleepers. Owners report it makes rolling over easier than traditional memory foam. This versatility makes it a popular choice for couples with different preferences.
How does the AS3 compare to other Amerisleep models?
Amerisleep offers models from AS1 to AS5, with AS3 in the middle. The AS2 is firmer, while the AS4 is softer. The AS3's medium feel is the most popular because it suits the widest range of sleepers. Based on specifications, the AS3 uses a 2-inch top layer of HIVE foam for pressure relief and a 3-inch transition layer. The base layer is 7 inches of support foam, giving a total height of 12 inches.
What about temperature regulation?
The AS3 uses open-cell foam in its top layer to increase airflow. The cover is made from a breathable polyester blend. However, it lacks a gel-infused layer, so some hot sleepers may still find it warm. Owners report it sleeps cooler than traditional memory foam but not as cool as hybrid mattresses. If you sleep very hot, consider the AS5, which has a cooling cover.
Is the AS3 good for couples?
Yes, the AS3 excels in motion isolation. The memory foam absorbs movement, so you are less likely to disturb your partner. Edge support is moderate, so you may feel less secure sitting on the edge. The medium firmness works for different body weights, but heavier individuals may prefer a firmer model. Overall, it is a strong contender for couples with mixed sleep styles.
Specs that matter
| Type | Memory foam |
| Firmness | Medium (5 out of 10) |
| Height | 12 inches |
| Layers | 3 foam layers |
| Cover | Breathable, removable |
| Trial | 100 nights |
Buy the Amerisleep AS3 if you switch positions at night and need a responsive, medium-feel mattress that works for all sleep styles.
Skip it if you prefer a very firm or very soft surface, or if you need strong edge support for sitting on the edge.
Questions before you buy
What firmness is the Amerisleep AS3?
The AS3 is rated at 5 out of 10 on the firmness scale, which is medium. It offers a balance of support and pressure relief, suitable for all sleep positions.
How thick is the Amerisleep AS3?
The AS3 is 12 inches thick, with a layered construction of 2 inches of HIVE foam, 3 inches of transition foam, and 7 inches of support foam.
Does the Amerisleep AS3 sleep cool?
It uses open-cell foam and a breathable cover to promote airflow. Most owners find it sleeps cooler than standard memory foam, but it may not be cool enough for very hot sleepers.
Can you flip the Amerisleep AS3?
No, the AS3 is not flippable. It has a specific layering system that must remain on top. Rotating it every few months can help prevent sagging.
What is the Amerisleep AS3 warranty?
The AS3 comes with a 20-year limited warranty. This covers manufacturing defects and premature sagging, but not normal wear or misuse.
Is the Amerisleep AS3 good for side sleepers?
Yes, the medium firmness provides enough cushioning for hips and shoulders. Side sleepers under 230 pounds report good pressure relief. Heavier side sleepers may need a softer model like the AS4.
How does the Amerisleep AS3 compare to the AS2?
The AS2 is firmer, rated at 7 out of 10, and better for stomach sleepers. The AS3 is softer and more adaptable for combination sleepers. The AS2 also lacks the HIVE foam layer, making it less pressure-relieving.
