My Pair of Bob-O-Pedic Cooling Pillows feature gel-infused memory foam for quick cooling support that conforms to your head and neck for increased comfort and pressure relief. Our cool-to-the-touch Coper blend cover provides a cleaner sleep surface with innovative temperature regulation benefits. Coper’s antimicrobial capabilities help irradiates bacteria on the surface of the pillow cover. My pillow is ideal for the side sleeper and the back sleeper. The Bob-O-Pedic Memory Foam combined with pure CertiPUR-US® Certified Foams providing consistent support and cloud-like comfort, this pillow is also breathable. Plus, the cover is made of an ultra-cozy material. You'll never wake up warm again when you have this pillow to keep you cool!