UltraGel is a new and clever comfort layer, offering supreme comfort, and unparalleled pressure relief; it comforts you as you lie down, but bounces back too, allowing you to toss and turn effortlessly without any partner disturbance. Mattress tension is medium. Also available as a 3', 4'6" and 6' size option, with, or without, drawers, and as a mattress only option.