The 400 Plus MOOD Base® is the most advanced adjustable base in the MOOD lineup, featuring everything you need for comfort, support, and entertainment. Available in King, Queen, and Twin XL sizes, this high-performance base includes head and foot adjustability, zero gravity positioning, lumbar support, massage, and much more. What sets it apart is the immersive built-in audio system with integrated speakers and an equalizer, turning your bed into a personalized entertainment hub.