Side-by-side mattress testing · 144+ comparisons published
Updated May 2026
Category
Novosbed Memory Foam Mattress
Amerisleep AS3
Comfort
9.2/10
9/10
Support
8.7/10
9/10
Cooling
8.2/10
8.9/10
Edge Support
8/10
8.6/10
Motion Isolation
9.7/10
9.1/10
Durability
9/10
9/10
Value
9.1/10
9/10
Quick Specs Comparison
Spec
Novosbed Memory Foam Mattress
Amerisleep AS3
Price (Queen)
$999
$1,049
Type
Memory Foam
Memory Foam
Firmness
6/10
5.5/10
Height
11 inches
12 inches
Trial
120 nights (full refund) with free Comfort+ adjustment
100 nights
Warranty
15-year limited
20 years
Shipping
Free shipping; white glove delivery available
Free shipping
Key Advantages
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
Why Choose Amerisleep AS3
- Plant-based foam is more eco-friendly
- Balanced medium feel
- More responsive than traditional memory foam