Ergonomic design: : Ergonomic design reduces pressure on lower back, legs and spine while sleeping.Strong elastic strap: The soft elastic strap on the cushion for side sleepers prevents the cushion from slipping during the night and thus ensures optimal sleeping comfort.High quality material: : Cushion core is foam for added softness and support.Comfortable and breathable: : The soft, breathable cover is machine washable for easy cleaning. Our knee pad has been carefully designed to allow air to circulate, so sweat and moisture don't stay in the cover. Get the good sleep you deserve.Multi-ct use: : Reduces pressure on the spine, hips, knees and back. The knee pillow helps relieve sciatica, knee pain and cross pain and hip and joint pain. It also supports the body during pregnancy.