Side-by-side mattress testing · 144+ comparisons published
Updated May 2026
Category
NapQueen Isabella 14" Hybrid Pillow Top
Spa Sensations Serenity 8" Memory Foam
Comfort
8.5/10
7.5/10
Support
8.3/10
7/10
Cooling
8/10
6.8/10
Edge Support
7.5/10
5.5/10
Motion Isolation
7.8/10
8.5/10
Durability
7.5/10
6.8/10
Value
9/10
9.5/10
Quick Specs Comparison
Spec
NapQueen Isabella 14" Hybrid Pillow Top
Spa Sensations Serenity 8" Memory Foam
Price (Queen)
$219
$180
Type
Hybrid
Memory Foam
Firmness
5/10
5.5/10
Height
14 inches
8 inches
Trial
100 nights
90 days (Walmart)
Warranty
10 years
10 years
Shipping
Free shipping
Free shipping
Key Advantages
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
Why Choose Spa Sensations Serenity 8" Memory Foam
- Incredibly affordable — $180 for a queen
- Over 27,000 reviews with 4.4-star average
- Green tea and charcoal infused for freshness