ComfortCushion is used to avoid sliding down while sitting in bed. With ComfortCushion under the thighs, the patient maintains a relaxed posture even when the head end of the bed is raised. ComfortCushion prevents the patient from sliding down in bed. With ComfortCushion placed under the knees, the pressure on the legs is relieved, giving a pleasant sense of relaxation. ComfortCushion is made of cellular plastic, a material which is soft enough to be yielding and, at the same time, firm enough to provide support.