Ventilated Knee Pillow keeps you cool and comfortable even on the stickiest nights. You'll find that the Ventilated Knee Pillow helps relieve hip and back pain while you sleep for unparalleled comfort and relaxation. This plush pillow features pure-ventilation technology that provides enhanced air and moisture flow to help keep you more comfortable. It's also got moisture wicking technology too, which means you'll be more comfortable even during the most humid and sticky nights. 9" x 8" x 4".