The i twin Heavenly tight top king mattress is built to the same specifications of the high priced name brands, but costs a whole lot less. Featuring a breathable cotton Tencel knit quilted cover over full foam encasement topped with a cool gel layer, the Heavenly has individually wrapped coils offer gentle firm support while relieving pressure points. The full foam encasement ensures a clean edge while minimizing movement transference. Available in multiple sizes. Art for illustration only.