Side-by-side mattress testing · 144+ comparisons published
Updated May 2026
Category
Novaform ComfortGrande
Zinus Green Tea Memory Foam
Comfort
8.5/10
8/10
Support
8.3/10
7.8/10
Cooling
8/10
7.5/10
Edge Support
7.8/10
7/10
Motion Isolation
8.8/10
8.5/10
Durability
8.2/10
7.8/10
Value
9.5/10
9.8/10
Quick Specs Comparison
Spec
Novaform ComfortGrande
Zinus Green Tea Memory Foam
Price (Queen)
$449
$299
Type
Memory Foam
Memory Foam
Firmness
5.5/10
5.5/10
Height
14 inches
12 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 Zinus Green Tea Memory Foam
- Incredible value under $300
- Green tea-infused for freshness
- Good pressure relief