Side-by-side mattress testing · 144+ comparisons published
Updated May 2026
Category
Sleep Number Climate360
King Koil Reserve Luxury
Comfort
9.5/10
9.3/10
Support
9.5/10
8.8/10
Cooling
9.8/10
8.4/10
Edge Support
8.5/10
8.7/10
Motion Isolation
9.6/10
8.3/10
Durability
9.2/10
9/10
Value
7/10
7.4/10
Quick Specs Comparison
Spec
Sleep Number Climate360
King Koil Reserve Luxury
Price (Queen)
$6,999
$3,799
Type
Air Chamber Hybrid
Luxury Pillow-Top Hybrid
Firmness
5/10
5.5/10
Height
13 inches
15 inches
Trial
100 nights
120 nights
Warranty
15 years
10 years
Shipping
In-home delivery & setup
White glove delivery through retail partners
Key Advantages
Why Choose Sleep Number Climate360
- Active cooling AND heating — 30° range each side
- Most advanced consumer smart bed available
- Ultimate contouring support (13")
Why Choose King Koil Reserve Luxury
- Genuinely plush pillow-top with natural fiber quilting
- Hand-tufted construction resists body impressions over time
- Strong pressure relief for side sleepers