Sleep soundly with this Bodipedic(tm) 3-inch gel-infused memory foam mattress topper with a cooling cover. Three inches of supportive AeroFusion memory foam cradles the body for targeted pressure relief and is infused with cooling gel to promote heat dissipation so you can enjoy refreshing sleep throughout the night. Built-in AeroFusion Ventilation Technology provides maximum airflow and temperature regulation through enhanced breathability. Each mattress topper includes a cool-to-the-touch circular-knit fabric cover that adds a layer of cooling softness and comfort and is removable for easy cleaning. The odor-free memory foam meets CertiPUR-US standards for content, emissions, and durability for long-lasting comfort. Remove cover to machine wash and dry. Spot clean foam only. Do not machine wash or dry. Use mild detergent, no chlorine bleach. Allow to air dry away from direct sunlight. Twin Topper: Dimensions: 74"H x 38"W x 3"D Weight: 8 1/2lbs Twin XL Topper: Dimensions: 79"H x 38"W x 3"D Weight: 9lbs Topper: Dimensions: 74"H x 53"W x 3"D Weight: 12lbs Queen Topper: Dimensions: 79"H x 59"W x 3"D Weight: 14lbs King Topper: Dimensions: 79"H x 75"W x 3"D Weight: 18lbs California King Topper: Dimensions: 83"H x 71"W x 3"D Weight: 17 7/8lbs Top and Gusset: Polyester, Polyethylene Bottom: Polyester, Cotton 5-year Limited Warranty This item requires oversize delivery. Please refer to the Order Summary in the Shipping step at checkout for delivery charge.