Side-by-side mattress testing · 144+ comparisons published
Updated September 2026
Category
Kluft Beyond Luxury Sublime
Vispring Devonshire
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
8.4/10
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
Kluft Beyond Luxury Sublime
Vispring Devonshire
Price (Queen)
$8,999
$3,950
Type
Hand-Tufted Luxury Hybrid
Handcrafted Pocket Spring & Natural Fill
Firmness
5/10
6/10
Height
15 inches
8.3 inches
Trial
Retailer-dependent; Bloomingdale's typically offers returns within 30 days
Retailer-dependent; typically 60–100 nights
Warranty
10-year non-prorated
30-year guarantee (the longest in the industry)
Shipping
White-glove delivery through retailers
White-glove delivery through authorized retailers
Key Advantages
Why Choose Kluft Beyond Luxury Sublime
- Plushest feel in the ultra-luxury tier — genuine grand-hotel sink
- Hand-tufted cashmere cover with wool, horsetail and latex comfort layers
- Micro-coil over pocket-coil support keeps the plush surface from bottoming out
Why Choose Vispring Devonshire
- Hand-nested calico pocket springs — the original pocket-spring maker since 1901
- 30-year guarantee is the longest warranty we have ever verified
- British fleece wool comfort layers breathe and regulate temperature naturally