The redesigned TEMPUR-Ergo Power Base is better than ever. Offers adjustable support in the lumbar region along with three different massage settings. Unlimited range of head and foot positions relieve pressure while sitting, reading, working or watching TV. Zero gravity preset provides a simulated weightless experience by simultaneously elevating your head and feet. The TEMPUR-Ergo Power Base paired with a Tempur-Pedic mattress helps to ease aches & pains, helping you fall asleep and stay asleep - every night. Includes 2 base pieces for split California king mattresses.