Side-by-side mattress testing · 144+ comparisons published
Updated May 2026
Category
Sleep Number ComfortNext Ultra
Purple RejuvenatePlus
Comfort
9.2/10
9.2/10
Support
9.2/10
9.1/10
Cooling
9/10
9.5/10
Edge Support
8.2/10
8.7/10
Motion Isolation
9.4/10
8.5/10
Durability
9/10
9/10
Value
7.2/10
7.2/10
Quick Specs Comparison
Spec
Sleep Number ComfortNext Ultra
Purple RejuvenatePlus
Price (Queen)
$4,499
$5,310
Type
Air Chamber Hybrid
Hybrid
Firmness
5/10
5.5/10
Height
14 inches
15.5 inches
Trial
100 nights
100 nights
Warranty
15 years
10 years
Shipping
In-home delivery
Free delivery in 7-10 days; FSA/HSA eligible
Key Advantages
Why Choose Sleep Number ComfortNext Ultra
- Maximum pressure relief across all zones
- 175% more cooling than ComfortMode
- 14-inch premium profile
Why Choose Purple RejuvenatePlus
- 3 inches of GelFlex Grid — enough depth that side sleepers do not compress through to the transition layer
- Widest sleeper-position range in the Rejuvenate collection; genuinely works for side, back and combination
- DreamLayer top softens the grid's first impression while keeping airflow intact