A pleasant, cool feeling Cool Comfort is the quick solution for a refreshing night' s sleep. Cool Comfort absorbs your body heat and provides naturally cool relief. Composition: External material: 100% cotton, TC, TTC Internal material: Special Cooling Gel ( SGS certified it can eat) Thickness: 0.6mm Features: Environmental protection, safety. The product does not pre-cool. It can be used directly. No electricity needed No air- conditioning No energy costs Need for hot night 6. 100% Safe & Clean Cooling work: Cool Gel Mat consists macromolecule three-dimensional network, it wrap the sodium polyacrylate compound inside. It has two advantages, First: macromolecule has high-performance Water retentivity. After long use, it still can keep the gel water molecules well moisture capacity, no volatilization. Second: macromolecule has high-performance heat retaining power, which can absorb heat and balance your body temperature to a nice and cool condition all night long. Specification: Item Number Description Net/ Gross weight Packaging IBD3040 30x40cm 0.60KGS/ 0.65KGS 16PCS/ CTN IBD9090 90X90cm 3.60KGS/ 3.75KGS 4PCS/ CTN IBD90140 90X140cm 5.50KGS/ 5.75KGS 2PCS/ CTN Remark: 30x40CM for pillow 90x90CM for single bed 90x140CM for double bed Usage Sit or sleep directly, body without harm Life Span 3 years