Stay cool and comfortable night after night with the TruCool Side Sleeper Pillow Featuring Serene Foam. The removable cool-to-the-touch cover features a breathable mesh gusset for higher airflow. Serene foam is enhanced with Supportive Air Technology, which increases support while reducing pressure. Ideal for side sleepers. Cover is antimicrobial treated. Serene foam is CertiPUR-US certified and is manufactured in the USA.TruCool and Serene are registered trademarks of Carpenter Co.; Supportive Air Technology and IsoFresh are trademarks of Carpenter Co.; CertiPUR-US is a registered certification mark of Alliance for Flexible Polyurethane Foam, Inc.