Specification and editorial comparison · lab measurements not available
Updated October 2026
Category
Plank Firm
WinkBed
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
Not lab tested
Not lab tested
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
Plank Firm
WinkBed
Type
All-Foam
Luxury Hybrid
Firmness
9/10
6.5/10
Height
10 inches
13.5 inches
Shipping
Free shipping
Free shipping & returns
Model specifications are catalog reference details, not instrumented measurements. Confirm the exact configuration and current seller terms.
Manufacturer Specs Compared
Figures each brand publishes on its own product page. Values a brand does not publish show as "Not published".
| Spec | Plank Firm | WinkBed |
|---|---|---|
| Profile height | Not published | 13.5" |
| Layers published | Not published | 5 |
| Cover material | Not published | Tencel cover |
| Coil count | Not published | Not published |
| Coil gauge | Not published | 14.75 gauge interior, 13.75 gauge edge |
| Zoning | Not published | Lumbar-zoned coil unit with reinforced perimeter |
| Foam density | Not published | Not published |
| Fire barrier | Not published | Not published |
| Certifications | Not published | Not published |
| Made in | Not published | Made in the USA |
| Queen dimensions | Not published | Not published |
| Queen weight | Not published | Not published |
Sources: WinkBeds official page
Key Advantages
Why Choose Plank Firm
- Flippable — firm and extra-firm surfaces in one mattress
- Excellent for stomach sleepers
- Great spinal alignment
Why Choose WinkBed
- Four firmness options for every sleep style
- Breathable Tencel cover with gel foams
- Motion isolation and reinforced edge support