Wolf Corporation - Mattress Topper in White (King) - Choose Size: KingEnhances the surface comfort of your current mattress without a full replacement. May extend the life of your current mattress if it is in good condition. Warranty: 3 years. No assembly required. Twin: 75 in. L x 39 in. W x 4 in. H (30 lbs). Twin-XL: 80 in. L x 39 in. W x 4 in. H (35 lbs). Full: 75 in. L x 54 in. W x 4 in. H (40 lbs). Queen: 80 in. L x 60 in. W x 4 in. H (45 lbs). King: 80 in. L x 76 in. W x 4 in. H (50 lbs)The Oahu is a mattress topper that utilizes Wolf Corporations &quot;Cloud&quot; as its core. The &quot;Cloud&quot; is Wolf&#039;s foam replacement pad made out of cotton and polyester. Proven to provide the same durability and resiliency of foam, but with mainly natural components. The &quot;Cloud&quot; core is covered with two layers of Wolf&#039;s cotton batting. The thermo-physical properties of cotton also help regulate temperature, preventing overheating and ensuring comfortable sleep. When one chooses our 100% cotton cover you will create a natural mattress topper.