Side-by-side mattress testing · 144+ comparisons published
Updated September 2026
Category
Serta Five Star Mattress
NapQueen Isabella 14" Hybrid Pillow Top
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
8.6/10
9/10
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
Serta Five Star Mattress
NapQueen Isabella 14" Hybrid Pillow Top
Price (Queen)
$519
$378
Type
Hybrid
Hybrid
Firmness
6/10
5/10
Height
Varies by comfort level
14 inches
Trial
120 nights
100 nights
Warranty
10 years
10 years
Shipping
Free shipping
Free shipping
Key Advantages
Why Choose Serta Five Star Mattress
- Free shipping in a box — no delivery scheduling
- Sold in multiple heights and feels
- Expands quickly enough to sleep on the first night
Why Choose NapQueen Isabella 14" Hybrid Pillow Top
- 14-inch thick profile — unusual at this price point
- Plush pillow top for hotel-like comfort
- Pocket coil system for responsive support