Coldest Ultra Slim Pillow is ideal for stomach, back, and side sleepers and its 2.5-inch height is perfect for people who prefer a low-profile pillow. The pillow's 360-degree Hex Gel Technology uses custom-engineered gel beads that distribute weight evenly to relieve pressure points and keep you cool all night long. The pillow's removable, machine-washable cover is made from soft, breathable fabric that helps to wick away moisture and keep you comfortable. And because the pillow is so thin, it's easy to travel with, so you can enjoy a good night's sleep no matter where you are.