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Amerisleep AS5 Mattress Review: Plush Support for Side Sleepers
The Amerisleep AS5 is a premium all-foam mattress engineered for side sleepers. It uses five layers of Bio-Pur and HIVE technology for pressure relief. The top layer is ultra-plush, yet the support core keeps hips aligned. It suits those who want a soft, cooling, and responsive sleep surface.
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The AS5 is a top-tier choice for side sleepers needing pressure relief. Its plush comfort layer and zoned support justify the premium price. Owners consistently report reduced shoulder and hip pain.
How it scores
The good and the annoying
- Excellent pressure relief for hips and shoulders
- Zoned HIVE support keeps spine aligned
- Plant-based Bio-Pur foam sleeps cooler than standard memory foam
- Great motion isolation for couples
- Very soft feel may not suit stomach sleepers
- Weak edge support; sitting near the edge feels unstable
- Premium price point
The Amerisleep AS5 is a premium all-foam mattress engineered for side sleepers. It uses five layers of Bio-Pur and HIVE technology for pressure relief. The top layer is ultra-plush, yet the support core keeps hips aligned. It suits those who want a soft, cooling, and responsive sleep surface.
What Makes the AS5 Different
The AS5 stands out for its ultra-plush comfort layer. It uses Bio-Pur, a plant-based memory foam that is more responsive than traditional foam. This means less of that 'sinking' feeling and easier movement. The HIVE technology provides zoned support, with firmer foam under the hips and softer under the shoulders. That combination is ideal for side sleepers.
How It Performs for Side Sleepers
Side sleepers need pressure relief at the shoulders and hips. The AS5's soft top layers contour closely, reducing pressure points. The zoned support keeps the spine in a neutral position. Owners report waking up without the usual aches. The foam also absorbs motion well, so couples rarely disturb each other.
Cooling and Temperature Regulation
Memory foam often traps heat, but the AS5 is designed to counter that. The Bio-Pur foam is more breathable than standard memory foam. It also has a open-cell structure that promotes airflow. The cover is a breathable, moisture-wicking fabric. Many owners say it sleeps cooler than expected for a soft foam mattress.
Durability and Support
The AS5 uses high-density foams that resist sagging. The base layer is a sturdy support foam that maintains its shape. The HIVE technology adds durability by distributing weight evenly. With proper care, the mattress should last well beyond the warranty period. However, its softness may not be ideal for heavier individuals who need more support.
Specs that matter
| Type | All-foam |
| Height | 12 inches |
| Firmness | Soft (3 out of 10) |
| Layers | 5 layers of Bio-Pur and HIVE foam |
| Trial | 100 nights |
| Warranty | 20 years |
Buy the AS5 if you are a side sleeper who wants a plush, pressure-relieving mattress and values cooling technology.
Skip it if you need strong edge support or prefer a firmer feel, especially if you sleep on your stomach.
Questions before you buy
Is the Amerisleep AS5 good for side sleepers?
Yes, it is specifically designed for side sleepers. Its plush top layers relieve pressure on shoulders and hips, while zoned support keeps the spine aligned.
How firm is the AS5?
The AS5 is rated as soft, about a 3 out of 10 on the firmness scale. That makes it one of the softest mattresses from Amerisleep.
Does the AS5 sleep hot?
No, it uses Bio-Pur foam, which is more breathable than standard memory foam. The cover also wicks moisture, helping with temperature regulation.
What is the Amerisleep AS5 made of?
It contains five layers of foam, including Bio-Pur comfort foam and HIVE transition foam. The base is a high-density support foam.
How long is the trial period for the AS5?
Amerisleep offers a 100-night trial for the AS5. If you are not satisfied, you can return it for a full refund.
Does the AS5 have good motion isolation?
Yes, the all-foam construction absorbs motion well. Couples report minimal disturbance when one partner moves or gets up.
Is the AS5 worth the price?
For side sleepers who value pressure relief and cooling, many owners say yes. It is a premium mattress with a 20-year warranty, but you pay for that quality.
Can the AS5 be used on an adjustable base?
Yes, the AS5 is compatible with adjustable bases. Its flexible foam construction works well with adjustable frames.
