Transform any mattress with 4” of added comfort layers with the SealyChill + Comfort mattress topper. A 1” pillowtop down-alternative cover pairs with 3” of responsive gel-infused memory foam for the ultimate cushioned comfort. This topper features SealyChill™ Gel-Infused Memory Foam – a combination of gel and conforming memory foam which helps provide adaptive comfort and support. Simply unbox, unroll and unwind. Features: Moisture Wicking, Antimicrobial, Removable Cover, Memory Foam Thread Count: 185 Bed Size: Twin Measurements: 75 Length/Inches, 39 Width/Inches Base Material: 100% Viscose Filling Content: 100% Viscoelastic Poly-Foam Care: Spot Clean Thickness: 3 - 3 1/2 Inch Mattress Securing: Skirt Mattress Pads & Toppers Type: Mattress Toppers Country of Origin: Made in US