Side-by-side mattress testing · 144+ comparisons published
Updated September 2026
Category
Sleep Number ClimateCool
Simmons Escape No. 2
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
7.5/10
7.2/10
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
Sleep Number ClimateCool
Simmons Escape No. 2
Price (Queen)
$4,949
$5,599
Type
Air Chamber Hybrid
Innerspring
Firmness
5/10
6/10
Height
12 inches
15"
Trial
100 nights
Varies by retailer
Warranty
15 years
10-year limited
Shipping
In-home delivery & setup
White glove delivery
Key Advantages
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
Why Choose Simmons Escape No. 2
- Hand-tufted build with cashmere, cotton and TENCEL
- Responsive latex comfort layer instead of memory foam
- Dual coil systems (OptiFit + nested Pocketed Coil)