Spa Luxury  Cool Touch Moisture Wicking Mattress Pad - Made In The USA (King 78" x 80") Cotton Cotton Top Fabric Treated For Moisture Wicking Cool Comfort Polyester & Tencel Blend Filling For Added Cooling Support (70% Polyester/30% TENCEL (Rayon From Eucalyptus Trees)) Designed to fit a 7"-18" Mattress Please know, this is not a mattress, just a cover/topper