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100-night trial20-year warranty
Why we recommend it
- +Medium-soft feel excellent for side sleepers who need shoulder and hip relief
- +HIVE® hex cutouts in the base layer provide zoned support
foamSee Today's Price at Amerisleep →
Amerisleep AS4
By Amerisleep
Amerisleep's medium-soft model for side sleepers and lightweight sleepers. Deep pressure relief without the all-the-way-soft feel of the AS5.
$1,149$1,649Queen
100-night trial
20-year warranty (non-prorated)
Height: 12"
Firmness: 3.5/10(brand)
Construction: memory-foam
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What's included
- ✓100-night sleep trial
- ✓20-year warranty
- ✓Free shipping & returns (most brands)
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Pricing by Size
| Size | MSRP | Sale Price | Action |
|---|---|---|---|
| Queen | $1,649 | $1,149 | View Current Offer |
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7.8/10
SleepRankedEditor Score
Editor's Review
The Amerisleep AS4 is a solid mattress choice with a few trade-offs — best suited for sleepers who prioritize motion isolation.
Firmness Fit7.5
Cooling5.0
Motion Isolation10.0
Edge Support5.0
Value7.5
Editor score computed from verified specifications by the SleepRanked editorial team. 1 review.
Popular With
side-sleeperspressure-relieflightweight-sleepers
Amerisleep Lineup: Good / Better / Best
Best
AS4
Amerisleep
$1,149
Currently viewingFinancing Options
Where to Buy
Affiliate links — prices may vary by retailer. We recommend buying direct for the best trial and warranty terms.
Pros & Cons
Pros
- + Medium-soft feel excellent for side sleepers who need shoulder and hip relief
- + HIVE® hex cutouts in the base layer provide zoned support
- + Plant-based Bio-Pur foam more breathable than traditional Memory Foam
Cons
- - Too soft for stomach sleepers — spinal alignment risk
- - All-Foam — less breathable than AS4 hybrid (when available)
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