Side-by-side mattress testing · 144+ comparisons published
Updated September 2026
Category
Sleep Number ComfortMode Lux
Leesa Legend Chill Hybrid
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
7.2/10
8.3/10
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
Sleep Number ComfortMode Lux
Leesa Legend Chill Hybrid
Price (Queen)
$2,099
$2,059
Type
Air Chamber Hybrid
Luxury Hybrid
Firmness
5/10
6/10
Height
11 inches
13.5 inches
Trial
100 nights
120 nights
Warranty
15 years
Limited lifetime warranty
Shipping
In-home delivery
Free shipping; ships in 5–8 business days
Key Advantages
Why Choose Sleep Number ComfortMode Lux
- 25% more cooling materials than ComfortMode
- Advanced hip relief for side sleepers
- 11-inch profile for better cushioning
Why Choose Leesa Legend Chill Hybrid
- Two spring layers — micro-springs for surface response, zoned springs for lumbar support
- Phase-change Ultra Cool cover feels cool on contact
- Plant-based GreenFlex BioFoam is USDA BioPreferred certified