Abstract: A pad for preventing patient entrapment between a mattress supported by a bed frame and a bed rail movable with respect to the bed frame. The pad includes an elongate rail side opposite an elongate mattress side, a frame bottom connecting bottom edges of the rail side and the mattress side, a corner connecting the mattress side to the frame bottom, and at least one pair of elastic straps extending from the corner. Each distal end of each elastic strap is detachably securable to the other distal end and the pair of elastic straps are securable around either the bed frame or the bed rail.