Specification and editorial comparison · lab measurements not available
Updated October 2026
Category
Casper Snow Hybrid
Serta Perfect Sleeper X Quilted Hybrid Level Two
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
8.5/10
8.2/10
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
Casper Snow Hybrid
Serta Perfect Sleeper X Quilted Hybrid Level Two
Type
Hybrid
Hybrid
Firmness
5.5/10
5.5/10
Height
12 inches
Varies by comfort level
Shipping
Free shipping & returns
Free shipping
Model specifications are catalog reference details, not instrumented measurements. Confirm the exact configuration and current seller terms.
Key Advantages
Why Choose Casper Snow Hybrid
- The coolest-sleeping mattress Casper builds
- Cool-to-the-touch QuickCool cover
- Conforming memory foam feel without heat trap
Why Choose Serta Perfect Sleeper X Quilted Hybrid Level Two
- Micro coil layer adds pressure relief and responsiveness
- Extra memory foam over Level One
- Five comfort zones on a zoned Q4 coil base