Side-by-side mattress testing · 144+ comparisons published
Updated May 2026
Category
Beautyrest World Class (Level Three)
Scott Living by King Koil
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
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
Beautyrest World Class (Level Three)
Scott Living by King Koil
Price (Queen)
$1,399
$1,299
Type
Innerspring
Hybrid
Firmness
6/10
6/10
Height
Varies by level
12 inches
Trial
100 nights
120 nights
Warranty
10 years
10 years
Shipping
Free white glove delivery
Free shipping through most dealers
Key Advantages
Why Choose Beautyrest World Class (Level Three)
- Meaningful upgrade in pressure relief over the Core levels
- Best motion separation in the non-Black range
- Breathable cooling built into the comfort stack
Why Choose Scott Living by King Koil
- Best price-to-quality ratio in the King Koil range
- Real pocketed coil support, not an all-foam shortcut
- Medium feel suits the widest set of sleepers