Wide Range ApplicationsThe knee pillows for back pain can be used not only in beds, sofas, offices, airplanes, or long trips but also as gifts for your loved ones. This comfortable soft memory foam knee pillow is widely used when people sleeping, reading, and watching TV. While sleeping using two together will get a better experience.High-density Memory FoamOur between knee pillow for side sleepers uses 100% premium memory foam, it slowly sinks when under pressure and gradually rebounds once the pressure is removed. When fitting your legs, the memory foam knee pillow adjusts its softness according to your body temperature and provides long-lasting comfort for hours.Using Warm TipsThere will be some small holes in the memory foam while manufacturing, it is normal and does not affect the use. After receiving, allow a minimum of 24 hours for the knee pillow to rebound to its original shape. Memory foam will slightly smell after passing through an airtight transportation environment, please place it in a cool and ventilated place for 3-5 days.Cooling Washable PillowcaseThe knee pillow with strap with cooling ice silk cover dispels stuffy heat and moisture, ensuring a dry and cozy sleep throughout the four seasons. The cover of the sleeping knee pillow with a big smooth zipper could be easily removed and tossed into the washing machine. The Memory Foam Knee Pillow Core Can not be washedMultifunctional Leg PillowsYou can place the knee pillow wherever you need it, such as thighs, calves, knees, lumbar, or even neck. It can be as a between leg pillow for side sleepers, between the knees pillow for side sleeping, hip pillows for pain relief side sleeping, knee pillow for side sleepers hip pain, and spine alignment pillow.Ergonomic Patented Design ergonomic curve shape leg pillow for side sleeping precisely fills the gaps between the upper or lower legs, relieving the pressure on joints and muscles. The memory foam leg pillow with a patented inner hollowed-out design, distributes the pressure between the legs and improves sleeping alignment to reduce pain.