Memory foam: 40D-100D Size: single, double, queen, king, etc. Cover material: velvet, cotton, air lay materials.etc Detailed Description:1)Benefit for your sleep,improve your quality of sleep.2)Very comfortable you body, relieve your body pain3)Size single, double, queen, king, etc. or customerized4)Cover material: velvet, cotton, air lay materials. with zipper, washable, durable, graceful and ...