Abstract: Portable apparatus to impart a rocking motion to a bed includes a first and second supporting members disposable adjacent to the bed ends and first and second elongated members respectively mounted pivotable at their centerpoints on the first and second supporting members. The bed is mounted on the elongated members so that it is supported between them, and a source of reciprocating motion, such as a hydraulic cylinder, is connected to one end of at least one of the elongated members to impart a rocking motion to the bed.

Abstract: Portable apparatus for imparting a rocking motion to a bed includes at least one vertically reciprocating mechanism disposable at one side of the bed and a first horizontally oriented bar connected to the reciprocating mechanism. A support structure including a second horizontally oriented bar is disposed adjacent to the opposed side of the bed. Cables or flexible webs are connected between the respective opposite ends of the two bars passing beneath the bed to support the bed above the floor. Controls are provided to actuate the vertically reciprocating mechanism at a predetermined frequency and vertical displacement to provide the desired rocking motion.