After Sales Service: We are very confident in the quality of the knee pillow. Please feel free to contact us if you have any dissatisfaction with our pillows. We will provide you with support within 24 hours. Multifunctional Design And Breath Cover: Versatile shape makes it usable as an under knee pillow, leg elevation pillow, half moon neck pillow, knee pillow for side sleepers, and lower back pillow for back pain. Breathable soft cover provides ultimate comfort and makes the knee pillow stay cooling. It is machine washable for easy cleaning. Ergonomic Design: The ergonomically half moon pillow mimics the natural curve of your neck, back, knees, and legs to provide ideal support and pressure relief to these areas. Multipurpose Use And Improve Sleeping Posture: The bolster pillow fits between your legs, knees, and behind your neck to accommodate both back and side sleepers; keeping your spine aligned while laying down. Comfort And Whole Body Pain Relief: CosyTech leg pillow for sleeping is made of premium memory foam with zero pressure, providing personalized support. Use our bolster pillow in various ways to reduce discomfort associated with common conditions such as sciatica, restless leg syndrome, and joint pain.