Ergonomic Design Foverhom knee pillow for side sleepers keeps your legship and spine in ideal alignment while sleeping and improves circulationEspecially convenient for side sleepers and pregnant women Deep And Healthy Sleep The therapeutic effect of the knee surgery pillow allows you to properly align your spine and reduce the pressure in sleepwhich guarantees you a vigorous and painless awakening Upgraded With More Supportive 50D High Density Memory Foam Knee wedge pillow made with pure 50D high density rebound memory foam with nontoxic materialProvide the right firmness and more long lasting supportwhich is recommended by professionals Adjustable And Removable Strap The velcro strap that keep your under knee pillow for sleeping on backin perfect alignment when you roll over while sleepingCome with a removable and washable cover made with super soft velboa Lifetime Warranty If for any reason you are not satisfiedplease contact us and our customer service team will process your refund immediately