1. Fabric: 22#+3 cm cotton +1000 spray + cotton cloth: very good moisture conductivity and moisture absorption, very good temperature control performance, anti-static, anti-bacteria and anti-allergic function.

2. Filling layer: three layers PK cotton +2 cm environmental protection brown +2 cm 3D: green environmental protection, ventilation is particularly strong, quiet and silent, the overall soft, moderate softness, durable elasticity, green environmental protection, good for health

3. Spring: High carbon steel silent spring: pressure resistance never deformation, super support, overall comfort.

4. Bottom side: 20#+1 cm cotton: make the whole mattress achieve the effect of respiratory circulation.

5. Perimeter: 20#+ cotton size side +4 side handle: clear stripes, beautiful and generous, strong permeability, easy to move.