Side-by-side mattress testing · 144+ comparisons published
Updated May 2026
Category
Lucid 10-Inch Memory Foam
Spa Sensations Serenity 8" Memory Foam
Comfort
8.3/10
7.5/10
Support
8/10
7/10
Cooling
7.5/10
6.8/10
Edge Support
7.2/10
5.5/10
Motion Isolation
8.8/10
8.5/10
Durability
7.8/10
6.8/10
Value
9.6/10
9.5/10
Quick Specs Comparison
Spec
Lucid 10-Inch Memory Foam
Spa Sensations Serenity 8" Memory Foam
Price (Queen)
$249
$180
Type
Memory Foam
Memory Foam
Firmness
5.5/10
5.5/10
Height
10 inches
8 inches
Trial
30 days
90 days (Walmart)
Warranty
10 years
10 years
Shipping
Free Amazon Prime shipping
Free shipping
Key Advantages
Why Choose Lucid 10-Inch Memory Foam
- Under $250 for a Queen
- Over 45,000 Amazon reviews
- Gel-infused memory foam cooling
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