The top layer is made up of 2.5 inches of gel-infused memory foam that both regulates temperature, and relieves pressure points to help you wake up well rested. Between the top and bottom layer, 2 inches of transition foam gently adapt to the curves and shape of your body.Beneath the top layer a 4.5-inch layer of high density base foam provides excellent support. A specialized formula creates open cell memory foam that quickly conforms to body weight and position without leaving lasting body impressions. The memory foam is infused with gel material that captures and distributes heat for a comfortable sleep temperature through the night. Made of CertiPUR-US certified foam this mattress has a Tencel blend cover that is breathable and wicks away moisture. Upon arrival place the box on the bed, carefully remove packaging, and watch as it expands. 9-inch thick mattress with a 2.5-inch gel memory foam comfort layer, 2-inch transition foam layer and 4.5-inch high density foam base for a medium-firm feel. Memory foam infused with heat-capturing gel material to regulate temperature. Open cell memory foam quickly conforms to weight and form to relieve pressure points. Foam is CertiPUR-US® certified for safety. The item "Lucid 9 inch Gel Infused Memory Foam Mattress Cushion-Firm Twin Full Queen" is in sale since Monday, August 27, 2018. This item is in the category "Home & Garden\Furniture\Beds & Mattresses\Mattresses". The seller is "linenspa" and is located in Logan, Utah. This item can be shipped to United States.