Product Description Design Pillow TopHeight 12 inch/30 cmFirmness Medium Size Twin, Twin XL, Full/Double, Queen, King, Cal king, Customized Quilting Layer Soft Mesh Fabric Gel Memory Foam Upholstery Layer High Density Foam Support Layer 7-Zone Pocket Spring Insulation White PK Felt + Non-Woven Fabric Surrounding Layer Luxury Check Fabric Regular Foam Bottom layer Non-Slip Fabric The Stucture Can be Customized Soft Mesh Fabric+Gel Memory Foam+High Density Foam+7-Zone Pocket Spring+White PK Felt+Non-Woven Fabric+Luxury Check Fabric+Regular Foam+Non-Slip Fabric 1.Mesh Fabric The surface of synthetic polymer yarn mesh is not easily deformed,and it has good breathability,through the air circulation, to maintain the surface of the comfortable and dry. 2.Gel Memory Foam The open-celled physical structure of gel memory foams is ventilating.It could control and balance the temperature, create a comfortable and cool sleep. 3.High Density Foam It features the perfect amount of cushioning and stiffness. It is soft but still holds its firmness and support for an individual to sit on it without compressing the foam too much. 4.Zone Spring It can fully fit human body,providing different degree of hard and soft support, giving effective rebound according to the movement in sleep, and to ensure healthy spine stretch.Memory Foam Spring Mattress manufacturers website:http://www.amorhome.com/hybrid-mattress/memory-foam-spring-mattress/.