1. High-quality and durable design: This knee pillow is made of high-quality and durable memory foam, breathable and soft, and can provide you with hours of long-lasting comfort.2. Ergonomically curved design: The designed contour separates your knees from the ideal space, adds enough space to improve the position of your legs, and improves blood flow to achieve a peaceful sleep.3. Improve posture and relieve pain: This heart-shaped pillow can provide ideal spinal alignment and support, helping to relieve symptoms of sciatica, arthritis, back, hip, knee pain and postoperative pain. It can also support the body during pregnancy and help maintain the natural curvature of the spine without putting any additional pressure on it.4. You can sleep comfortably in any position and move freely at night. It has a real ergonomic design, and the soft curves and crescent shape are suitable for men and women. The precise tether contour of the pillow fits the natural shape of your legs. This allows the foam leg pillows to adapt to your shape without restricting movement or requiring you to sleep in a specific position.5. Correct sleeping position: place this knee pillow between your knees, calves and hips to provide better support for the spine and help maintain the natural curvature of the spine without putting any additional pressure on it .6. Easy to remove machine washable cover: our soft knee pillow cover is easy to remove and machine wash. We do this to keep your night support fresh.