phase change cooling mattress

Phase change cooling mattress Size: 90cm*90cm or 90cm*140cm (also can choose customerized size) Weight: 3.4kg for 90cm*90cm ; 5.3kg for 90cm*140cm Color: pink, rose, light green, sapphire blue, light grey and etc. Material: Outer material: PVC waterproof composite Fabric (also can choose other material) Inside MaterialOur patent phase change energy storage material (constant temperature:30 centi degree) Advantage: No need electricity, economic, environmentally friendly, beautiful, and durable; can keep constant temperature 6-8 hours with full energy storage; can keep cooling with more than three years usage.