Abstract: A bed safety guard provides additional guarding protection lengthwise of the bed. The side support or guard rail is secured against the side of the mattress by a plurality of slats extending transversely across substantially the entire width of the box spring. Each of the slats is bent at a terminal end thereof to form a fixed substantially right angle. The terminal ends cooperate with the side of the box spring to reliably secure the guard rail in position, to prevent it from being dislodged or pushed out and away from the bed by an occupant.