Olee Sleep 13 Inch Box Top Hybrid Gel Infused Memory Foam Innerspring Mattress (Full) 13SM01F 7.5 inch Heat Treated Coil maintains mattress firmness constantly 1 inch Eco Friendly Gel Cool I Gel help you sleep in proper temperature. 1.5 inch Soft memory foam supports and surrounds your body shape 2 inch High density foam absorbs and disperse your weight. 2 inch Poly Jacquard Fabric and Hollow Conjugnated Fiber help ventilation