Specification and editorial comparison · lab measurements not available
Updated October 2026
Category
Tempur-Pedic TEMPUR-ProAdapt
Serta iSeries NXG 3500 Medium Foam
Comfort
Not lab tested
Not lab tested
Support
Not lab tested
Not lab tested
Cooling
Not lab tested
Not lab tested
Edge Support
Not lab tested
Not lab tested
Motion Isolation
Not lab tested
Not lab tested
Durability
Not lab tested
Not lab tested
Value
8/10
8/10
Blank cells mean that model has not completed our instrumented lab protocol, so we publish no measured score for it. We never estimate a number we have not recorded.
Quick Specs Comparison
Spec
Tempur-Pedic TEMPUR-ProAdapt
Serta iSeries NXG 3500 Medium Foam
Type
Memory Foam
Memory Foam
Firmness
5/10
5.5/10
Height
12 inches
Varies by comfort level
Shipping
Free white glove delivery
Free shipping
Model specifications are catalog reference details, not instrumented measurements. Confirm the exact configuration and current seller terms.
Key Advantages
Why Choose Tempur-Pedic TEMPUR-ProAdapt
- SmartClimate dual cover system
- Available in 4 firmness options
- Extra TEMPUR comfort layer vs Adapt
Why Choose Serta iSeries NXG 3500 Medium Foam
- Deep memory-foam contouring with a medium feel
- Ultimate Edge support is unusually firm for an all-foam bed
- CoolFeel Plus counters the usual memory-foam heat