Specification and editorial comparison · lab measurements not available
Updated October 2026
Category
Birch Natural Mattress
Sweet Zzz Honey Hybrid
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
Birch Natural Mattress
Sweet Zzz Honey Hybrid
Type
Latex Hybrid
Latex Hybrid
Firmness
6.5/10
5.5/10
Height
11 inches
10–11 inches depending on firmness
Shipping
Free shipping
Free shipping in the contiguous U.S. (verify your ZIP)
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 | Birch Natural Mattress | Sweet Zzz Honey Hybrid |
|---|---|---|
| Profile height | 11" | Not published |
| Layers published | 4 | Not published |
| Cover material | Organic cotton cover with natural wool liner | Not published |
| Coil count | Not published | Not published |
| Coil gauge | Not published | Not published |
| Zoning | Not published | Not published |
| Foam density | Not published | Not published |
| Fire barrier | Natural wool fire barrier; no fiberglass | Not published |
| Certifications | GOLS organic latex, GREENGUARD Gold | Not published |
| Made in | Not published | Not published |
| Queen dimensions | Not published | Not published |
| Queen weight | Not published | Not published |
Sources: Birch official page
Key Advantages
Why Choose Birch Natural Mattress
- GREENGUARD Gold certified
- Natural Talalay latex
- Organic wool and cotton
Why Choose Sweet Zzz Honey Hybrid
- Four published firmness choices, including a genuinely extra-firm option for shoppers who struggle to find one
- GOLS-certified organic Dunlop latex, organic cotton and organic wool instead of a conventional memory-foam comfort layer
- Finished mattress is advertised as GREENGUARD Gold certified for low chemical emissions