Side-by-side mattress testing · 144+ comparisons published
Updated May 2026
Category
Cocoon Chill
Nectar Memory Foam
Comfort
8.5/10
9.6/10
Support
8.3/10
9.2/10
Cooling
8.8/10
8.8/10
Edge Support
8/10
8.5/10
Motion Isolation
8.7/10
9.7/10
Durability
8.4/10
9.3/10
Value
9.2/10
9.9/10
Quick Specs Comparison
Spec
Cocoon Chill
Nectar Memory Foam
Price (Queen)
$619
$699
Type
Memory Foam
Memory Foam
Firmness
5.5/10
6/10
Height
10 inches
12 inches
Trial
100 nights
365 nights
Warranty
10 years
Forever Warranty
Shipping
Free shipping
Free shipping & returns
Key Advantages
Why Choose Cocoon Chill
- Affordable cooling option
- Backed by Sealy quality
- Phase-change cooling cover
Why Choose Nectar Memory Foam
- Exceptional value - premium feel at budget price
- Forever warranty - unprecedented coverage
- Outstanding motion isolation for couples
Lab Verdict
Cooling was a wash — both mattresses landed within half a degree of each other after 60 minutes of body heat. Nectar Memory Foam isolated motion better for couples (0.06g vs. 0.1g on the Cocoon Chill). The Nectar Memory Foam relieved more shoulder pressure for side sleepers (29 mmHg vs. 32 mmHg). 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 | Cocoon Chill | Nectar Memory Foam | Edge |
|---|---|---|---|
| Cooling (60-min Δ°F) | 3.3°F | 3.3°F | Tie |
| Motion isolation (g) | 0.1g | 0.06g | Tie |
| Edge sinkage | 2.2" | 2.1" | Nectar Memory Foam |
| Shoulder pressure (mmHg) | 32 mmHg | 29 mmHg | Nectar Memory Foam |
| Response time (s) | 1.3s | 1.2s | Nectar Memory Foam |
| Off-gassing | 2 days | 1 days | Nectar Memory Foam |
Median of 3 trials, 68°F climate-controlled lab. DH/KW / DH/KW · scoring vv2.1.