Side-by-side mattress testing · 144+ comparisons published
Updated September 2026
Category
Naturepedic EOS Classic
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
8.2/10
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
Naturepedic EOS Classic
Vispring Devonshire
Price (Queen)
$3,799
$3,950
Type
Latex Hybrid
Handcrafted Pocket Spring & Natural Fill
Firmness
6/10
6/10
Height
12 inches
8.3 inches
Trial
100 nights
Retailer-dependent; typically 60–100 nights
Warranty
25-year limited warranty
30-year guarantee (the longest in the industry)
Shipping
Free shipping; ships in 3–5 business days
White-glove delivery through authorized retailers
Key Advantages
Why Choose Naturepedic EOS Classic
- Five firmness configurations, and split firmness left-to-right on queen and larger
- Comfort layers can be re-ordered or exchanged later instead of buying a new mattress
- GOTS-certified organic cotton and wool with GOLS-certified organic latex
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