Specification and editorial comparison · lab measurements not available
Updated October 2026
Category
Serta Perfect Sleeper Cascade Ridge Plush 12.5"
Emma Hybrid Comfort
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
8.6/10
9.3/10
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
Serta Perfect Sleeper Cascade Ridge Plush 12.5"
Emma Hybrid Comfort
Type
Innerspring
Hybrid
Firmness
4.5/10
5.5/10
Height
12.5 inches
12 inches
Shipping
Free shipping
Free shipping
Model specifications are catalog reference details, not instrumented measurements. Confirm the exact configuration and current seller terms.
Key Advantages
Why Choose Serta Perfect Sleeper Cascade Ridge Plush 12.5"
- 12.5" profile fits standard sheets
- Steady support aimed at aches and back pain
Why Choose Emma Hybrid Comfort
- Europe's #1 mattress brand
- UltraDry moisture-wicking cover
- AeroFlex spring technology