A mattress mount unit that grasps a periphery of an air hose and that clips onto a bed sheet to prevent relative movement of the hose with respect to the bed sheet and that has a mattress mount base the lies beneath a mattress. The separation distance between the grip and the mattress mount base is defined by a plurality of height extension links that snap lock with each other, but which can be released from the snap lock position to remove or add height extension links as needed.