Side-by-side mattress testing · 144+ comparisons published
Updated September 2026
Category
Serta iComfort Mattress (Standard)
Amerisleep AS3
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
8.3/10
9/10
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
Serta iComfort Mattress (Standard)
Amerisleep AS3
Price (Queen)
$1,199
$1,049
Type
Memory Foam
Memory Foam
Firmness
6/10
5.5/10
Height
Varies by comfort level
12 inches
Trial
120 nights
100 nights
Warranty
10 years
20 years
Shipping
Free shipping
Free shipping
Key Advantages
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
Why Choose Amerisleep AS3
- Plant-based foam is more eco-friendly
- Balanced medium feel
- More responsive than traditional memory foam