A safety bed including a bed frame with a head board, side boards and a footboard, pivotally attached guard members, and a vertically adjustable mattress support structure which is attached to the side boards. The mattress support structure is capable of being lowered within the confines of the bed frame to prevent a patient from crawling out of the safety bed. The mattress support structure capable of being raised within the bed frame to grant a health care provider access to the patient. The raising and lowering of the mattress support frame does not affect height of the side boards or guard members.
