Side-by-side mattress testing · 144+ comparisons published
Updated May 2026
Category
SFERRA Sonno Notte Luxury Firm
Sleep Number ClimateCool
Comfort
9.3/10
9.2/10
Support
9.7/10
9.3/10
Cooling
9/10
9.7/10
Edge Support
9.5/10
8.5/10
Motion Isolation
9.2/10
9.5/10
Durability
9.8/10
9/10
Value
7.5/10
7.5/10
Quick Specs Comparison
Spec
SFERRA Sonno Notte Luxury Firm
Sleep Number ClimateCool
Price (Queen)
$5,462
$4,949
Type
Luxury Firm Innerspring
Air Chamber Hybrid
Firmness
7/10
5/10
Height
14.5 inches
12 inches
Trial
30 nights
100 nights
Warranty
10 years
15 years
Shipping
White glove delivery
In-home delivery & setup
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 Sleep Number ClimateCool
- Active cooling adjusts up to 15°F cooler per side
- 659 reviews with 4.7-star average — well-proven
- Integrated base included in the price