Side-by-side mattress testing · 144+ comparisons published
Updated May 2026
Category
Leesa Sapira Hybrid
Nolah Evolution 15
Comfort
9/10
9.3/10
Support
9.1/10
9.2/10
Cooling
8.8/10
9.1/10
Edge Support
8.7/10
9/10
Motion Isolation
9/10
9.2/10
Durability
8.9/10
9.1/10
Value
8.8/10
9/10
Quick Specs Comparison
Spec
Leesa Sapira Hybrid
Nolah Evolution 15
Price (Queen)
$1,199
$1,199
Type
Hybrid
Hybrid
Firmness
6/10
6/10
Height
11 inches
15 inches
Trial
100 nights
120 nights
Warranty
10 years
Lifetime
Shipping
Free shipping
Free shipping
Key Advantages
Why Choose Leesa Sapira Hybrid
- One donated for every 10 sold
- Premium pocket spring system
- Good balance of comfort and support
Why Choose Nolah Evolution 15
- AirFoam doesn't trap heat like memory foam
- Excellent pressure relief
- Tall 15" profile feels luxurious
Lab Verdict
Cooling was a wash — both mattresses landed within half a degree of each other after 60 minutes of body heat. Nolah Evolution 15 isolated motion better for couples (0.09g vs. 0.11g on the Leesa Sapira Hybrid). Pressure mapping put both beds well under the 32 mmHg capillary-closure threshold for side sleepers. Perimeter compression was nearly identical — neither bed is the obvious pick on edge support alone. Nolah Evolution 15 returned more energy on rebound (58% vs. 41%), favoring combo sleepers.
| Metric | Leesa Sapira Hybrid | Nolah Evolution 15 | Edge |
|---|---|---|---|
| Cooling (60-min Δ°F) | 3°F | 3°F | Tie |
| Motion isolation (g) | 0.11g | 0.09g | Tie |
| Edge sinkage | 1.8" | 2" | Leesa Sapira Hybrid |
| Shoulder pressure (mmHg) | 29 mmHg | 30 mmHg | Leesa Sapira Hybrid |
| Response time (s) | 0.4s | 0.6s | Leesa Sapira Hybrid |
| Off-gassing | 1 days | 2 days | Leesa Sapira Hybrid |
Median of 3 trials, 68°F climate-controlled lab. KW / KW/BT · scoring vv2.1.