Side-by-side mattress testing · 144+ comparisons published
Updated May 2026
Category
Nolah
Purple
Comfort
8.5/10
8.8/10
Cooling
8/10
9/10
Motion Isolation
8.5/10
8/10
Edge Support
7.5/10
7.8/10
Pressure Relief
9/10
8.5/10
Value
8.5/10
7.5/10
Durability
8/10
8.5/10
Quick Specs Comparison
Spec
Nolah
Purple
Price (Queen)
$999–$1,999
$1,299–$3,498
Type
Foam / Hybrid
GelFlex Grid Hybrid
Trial
120 nights
100 nights
Warranty
Lifetime
10 years
Key Advantages
Why Choose Nolah
- AirFoam excels at pressure relief for side sleepers
- More affordable across the lineup
- Lifetime warranty
- Better motion isolation for light sleepers
Why Choose Purple
- GelFlex Grid provides superior airflow and cooling
- Unique adaptive feel works for all positions
- No body heat retention
- More responsive for combination sleepers
Lab Verdict
Purple held heat-neutral better than the Nolah (2.5°F surface rise vs. 3°F). Motion isolation was roughly equivalent; either is safe for a partnered sleeper. 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. Responsiveness was comparable; repositioning effort should feel similar on either.
| Metric | Nolah | Purple | Edge |
|---|---|---|---|
| Cooling (60-min Δ°F) | 3°F | 2.5°F | Purple |
| Motion isolation (g) | 0.09g | 0.09g | Tie |
| Edge sinkage | 2" | 2" | Tie |
| Shoulder pressure (mmHg) | 30 mmHg | 29 mmHg | Purple |
| Response time (s) | 0.6s | 0.6s | Tie |
| Off-gassing | 2 days | 2 days | Tie |
Median of 3 trials, 68°F climate-controlled lab. KW/BT / NL/KW · scoring vv2.1.