Side-by-side mattress testing · 144+ comparisons published
Updated May 2026
Category
Novaform ComfortGrande
Cocoon Chill
Comfort
8.5/10
8.5/10
Support
8.3/10
8.3/10
Cooling
8/10
8.8/10
Edge Support
7.8/10
8/10
Motion Isolation
8.8/10
8.7/10
Durability
8.2/10
8.4/10
Value
9.5/10
9.2/10
Quick Specs Comparison
Spec
Novaform ComfortGrande
Cocoon Chill
Price (Queen)
$449
$619
Type
Memory Foam
Memory Foam
Firmness
5.5/10
5.5/10
Height
14 inches
10 inches
Trial
Costco return policy
100 nights
Warranty
20 years
10 years
Shipping
Free shipping from Costco
Free shipping
Key Advantages
Why Choose Novaform ComfortGrande
- Incredible Costco value
- 14-inch luxury height
- Costco's unlimited return policy
Why Choose Cocoon Chill
- Affordable cooling option
- Backed by Sealy quality
- Phase-change cooling cover