A patient positioning device attaches to a bed rail to stabilize a patient on the patient's side to more easily provide care to the patient. The device includes a shaft having a first end and a second end. A cushion is coupled to the first end of the shaft. The cushion is configured for abutting a back side of a patient to support the back side of the patient. A tube is coupled to the second end of the shaft. A plurality of clips is coupled to the tube The clips are configured for releasably attaching to a bed rail.