Specification and editorial comparison · lab measurements not available
Updated October 2026
Category
SFERRA Sonno Notte Luxury Firm
Stearns & Foster Estate
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
Not lab tested
Not lab tested
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
SFERRA Sonno Notte Luxury Firm
Stearns & Foster Estate
Type
Luxury Firm Innerspring
Luxury Innerspring
Firmness
7/10
6/10
Height
14.5 inches
15 inches
Shipping
White glove delivery
Free white glove delivery
Model specifications are catalog reference details, not instrumented measurements. Confirm the exact configuration and current seller terms.
Key Advantages
Why Choose SFERRA Sonno Notte Luxury Firm
- Exceptional build quality — hand-tufted, made in USA
- Natural Talalay latex comfort layer for responsive support
- Individually pocketed coils minimize motion transfer
Why Choose Stearns & Foster Estate
- IntelliCoil HD adaptive support
- Cashmere-blend quilted cover