Specification and editorial comparison · lab measurements not available
Updated October 2026
Category
Casper The One
Sleep EZ Roma All-Latex Mattress
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
9.1/10
9.5/10
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 The One
Sleep EZ Roma All-Latex Mattress
Type
All-Foam
All-Latex (Dunlop)
Firmness
6.5/10
6.5/10
Height
11 inches
7 inches
Shipping
Free shipping & returns
Free shipping in the continental US
Model specifications are catalog reference details, not instrumented measurements. Confirm the exact configuration and current seller terms.
Key Advantages
Why Choose Casper The One
- Lowest price in the current Casper lineup
- Zoned support keeps hips from sinking
- Class-leading motion isolation for couples
Why Choose Sleep EZ Roma All-Latex Mattress
- Flippable — medium on one side, firm on the other, no extra cost
- Naturally breathable open-cell structure sleeps cool