Specification and editorial comparison · lab measurements not available
Updated October 2026
Category
Vispring Devonshire
Serta iComfortPro Level Three
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
8.4/10
7.6/10
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
Vispring Devonshire
Serta iComfortPro Level Three
Type
Handcrafted Pocket Spring & Natural Fill
Latex Hybrid Foam
Firmness
6/10
5.5/10
Height
8.3 inches
Varies by comfort level
Shipping
White-glove delivery through authorized retailers
Free shipping
Model specifications are catalog reference details, not instrumented measurements. Confirm the exact configuration and current seller terms.
Key Advantages
Why Choose Vispring Devonshire
- Hand-nested calico pocket springs — the original pocket-spring maker since 1901
- British fleece wool comfort layers breathe and regulate temperature naturally
Why Choose Serta iComfortPro Level Three
- Up to 13" of professional-grade latex — the deepest comfort stack Serta sells
- Graphite-infused latex adds heat dissipation
- Five support zones for alignment