Altimair Twin Size 3/4 Inch Thick, High Density Visco Elastic Memory Foam Mattress Pad Bed Topper AATTMF01 Instantly makes any mattress more restful, comfortable and supportive for a better night sleep Top Quality High Density Material Healthy, Comfortable and long lasting Hypoallergenic and Antimicrobial Dimensions: 72 L x 37 W x &frac34; H (inch)