The redesigned TEMPUR-Ergo(R) power base is better than ever with the addition of adjustable lumbar support. With the pressure-relieving power of a virtually unlimited range of head and foot ergonomic positions (including Zero Gravity), the TEMPUR-Ergo(R) Power Base is the ultimate pairing for your Tempur-Pedic(R) mattress to help ease aches & pains and fall asleep in comfort-every night.