Wellsville 8 Inch Gel Foam Mattress Cal King Two-inch layer of ventilated, gel-infused memory foam eases pressure points and regulates temperature. A 6-inch layer of high density base foam offers superior support and a firm feel. An ultra-soft quilted cover creates an air layer for luxurious comfort. L : 20 - W : 20.25 - H : 39.5 - W : 77