Side-by-side mattress testing · 144+ comparisons published
Updated May 2026
Category
Amerisleep AS3
Novosbed Memory Foam Mattress
Comfort
9/10
9.2/10
Support
9/10
8.7/10
Cooling
8.9/10
8.2/10
Edge Support
8.6/10
8/10
Motion Isolation
9.1/10
9.7/10
Durability
9/10
9/10
Value
9/10
9.1/10
Quick Specs Comparison
Spec
Amerisleep AS3
Novosbed Memory Foam Mattress
Price (Queen)
$1,049
$999
Type
Memory Foam
Memory Foam
Firmness
5.5/10
6/10
Height
12 inches
11 inches
Trial
100 nights
120 nights (full refund) with free Comfort+ adjustment
Warranty
20 years
15-year limited
Shipping
Free shipping
Free shipping; white glove delivery available
Key Advantages
Why Choose Amerisleep AS3
- Plant-based foam is more eco-friendly
- Balanced medium feel
- More responsive than traditional memory foam
Why Choose Novosbed Memory Foam Mattress
- True slow-sinking memory foam contour — one of the deepest hugs still sold direct
- Near-perfect motion isolation; a partner getting up is essentially undetectable
- Free Comfort+ kit adjusts firmness in year one instead of forcing a return