Specification and editorial comparison · lab measurements not available
Updated October 2026
Category
Zonli Classic Floor Mattress
Sonu Sleep System
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
9.4/10
0/10
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
Zonli Classic Floor Mattress
Sonu Sleep System
Type
Japanese Floor Futon
Hybrid
Firmness
6/10
6/10
Height
3 inches
14"
Shipping
Free shipping on orders over $100
See brand checkout terms
Model specifications are catalog reference details, not instrumented measurements. Confirm the exact configuration and current seller terms.
Key Advantages
Why Choose Zonli Classic Floor Mattress
- Tufted construction keeps the fill from shifting or clumping
- Softer surface than the Wheat Dream — better for lounging and naps
- 100% cotton shell breathes well and stays cool
Why Choose Sonu Sleep System
- Unusual recessed head-and-shoulder channel offers a different position for the lower arm
- Customizable support inserts are designed around side sleeping