Side-by-side mattress testing · 144+ comparisons published
Updated May 2026
Category
King Koil Xtended Life
Casper Dream Max Hybrid
Comfort
8.4/10
9.2/10
Support
9.2/10
9.4/10
Cooling
8.3/10
8.8/10
Edge Support
9.1/10
9.1/10
Motion Isolation
8.4/10
8.7/10
Durability
9.3/10
9.2/10
Value
8.2/10
8.3/10
Quick Specs Comparison
Spec
King Koil Xtended Life
Casper Dream Max Hybrid
Price (Queen)
$2,549
$2,359
Type
Hybrid
Hybrid
Firmness
7/10
4.5/10
Height
14 inches
14 inches
Trial
120 nights
100 nights
Warranty
10 years
10 years
Shipping
Free shipping through most dealers
Free shipping & returns
Key Advantages
Why Choose King Koil Xtended Life
- Excellent support for heavier sleepers and couples over 400 lb combined
- Best edge support in the King Koil lineup
- High-density foams resist body impressions
Why Choose Casper Dream Max Hybrid
- Deepest cushioning of any Casper hybrid
- Precise ergonomic zoning for spinal alignment
- Strong edge support at 14 inches