Side-by-side mattress testing · 144+ comparisons published
Updated September 2026
Category
Amerisleep AS3
Serta iComfort Mattress (Standard)
Comfort
Not lab tested
Not lab tested
Support
Not lab tested
Not lab tested
Cooling
Not lab tested
Not lab tested
Edge Support
Not lab tested
Not lab tested
Motion Isolation
Not lab tested
Not lab tested
Durability
Not lab tested
Not lab tested
Value
9/10
8.3/10
Blank cells mean that model has not completed our instrumented lab protocol, so we publish no measured score for it. We never estimate a number we have not recorded.
Quick Specs Comparison
Spec
Amerisleep AS3
Serta iComfort Mattress (Standard)
Price (Queen)
$1,049
$1,199
Type
Memory Foam
Memory Foam
Firmness
5.5/10
6/10
Height
12 inches
Varies by comfort level
Trial
100 nights
120 nights
Warranty
20 years
10 years
Shipping
Free shipping
Free shipping
Key Advantages
Why Choose Amerisleep AS3
- Plant-based foam is more eco-friendly
- Balanced medium feel
- More responsive than traditional memory foam
Why Choose Serta iComfort Mattress (Standard)
- Five support zones designed for spinal alignment
- Cool-to-the-touch cover on a sub-$1,200 foam bed
- Excellent motion isolation for couples