Avocado Eco Adjustable Base California King Split Set lets you tailor support on each side of a California King mattress so partners can customize head and foot positions for sleep, reading, or lounging. The dual bases use quiet motors and programmable presets, including zero gravity, to reduce pressure and improve circulation while fitting into standard bed frames. Height-adjustable legs and a sturdy frame provide reliable support and eliminate the need for a box spring, making setup straightforward.