King size adjustable bases often look similar to a regular metal frame, though there are different styles available. They're proven to improve sleep and health by cradling your body in a more comfortable position. Most are electric and come with a remote, so it's very easy to adjust your movable base. You aren’t limited to a certain special mattress for adjustable beds, many of the mattresses available today are compatible. As long as you make sure to buy the right kind of mattress, it won’t get ruined by the movements of the adjustable frame.