An adjustable mattress foundation includes a frame having at least one movable frame portion and a panel coupled for movement with the movable frame portion. The panel includes a lower surface in facing relationship with the movable frame portion and an upper surface. The adjustable mattress foundation also includes an actuator supported upon the frame and operable to selectively incline the at least one movable frame portion, a vibration motor, and a support suspending the vibration motor relative to the panel The support is mounted to the upper surface of the panel.