The Tularis Cooling Gel Knee Pillow is a heart-shaped memory foam pillow designed for side sleepers to help alleviate hip pain by providing support between the legs. It features cooling gel technology for added comfort, a breathable polyester fabric, and a medium firmness level. This knee pillow is machine washable and has dimensions of 9" x 9" x 5", making it suitable for adult use in the bedroom. With its unique design and quality materials, this Tularis pillow is a great addition to help improve sleep and reduce pain for those struggling with hip pain while sleeping.