Multifunctional.
Back cushion: Many people find that sleeping with a pillow below the knee can relieve tension and stress. This can also lift the lower body, adjust the posture and improve blood circulation of the legs. Pregnant women: In many pregnant women, placing a pillow between the knees for sleeping reduces pressure on the hips and pelvis. People with back: or knee pain: Keeping the legs and knees aligned, this can reduce the discomfort of people with back pain.