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 and the pillow’s serene foam is enhanced with Supportive Air Technology, which increases support while reducing pressure. Cover is antimicrobial treated serene foam features IsoFresh odor-neutralizing technology and is CertiPUR-US certified. 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.