Curved Design: The contoured design of the pillow perfectly fits the curve of the human body, keeps your legs in a natural position while sleeping. Unlike traditional knee pads, the knee pillow features a true ergonomic design with its soft curves and heart shape to comfortably fit your legs and knees at the same time. Bring you a healthy and deep sleep that lasts all night. Elastic Band Design - Our knee pillow is equipped with an elastic strap so that it won't slip when you adjust your sleeping position, no need to fumble around when the light is off, and ensures a comfortable sleep all night long. Premium Memory Foam & Removable Cover - The knee pads are made of premium memory foam. The pillow cover is made of high-quality soft and breathable cationic fabric that won't shrink or pill. Please remove the memory foam through the zipper and wash the pillowcase by hand or machine. Note: The memory foam pillow core cannot be washed. Wide Applications: The leg pillow for sleeping can not only be used in bed, sofa, office, recliner, airplane or long-distance travel, but also a good gift to show your care to someone you love. This cute pillow is widely used for sleeping, reading or watching TV.