Aloe Gel Infused Memory Foam 15-inch King-size Mattress King Mattress measures 15 inches thick Originally designed for NASA, this space age foam cradles your body Temperature sensitive foam adjusts to your body First layer: 1-inch, 5-pound density Gel-infused memory foam, Second layer: 2-inch, 4-pound density high-resiliency Gel-infused memory foam, Third layer: 3-inch, 4-pound density high-resiliency memory foam, Base layer: 9-inch, high-density reflex base foam Mattress can be used with an existing frame. Bed frame not included