Experience superior airflow with the Comfort Tech 2” Convoluted Mattress Topper Featuring Tranquility Foam. This topper is designed to offer excellent support and increased durability. Featuring a convoluted design, 2” gusseted polyester knit cover, and 37.5 Technology, which helps regulate the temperature your body experiences while you sleep. Tranquility Foam is CertiPUR-US certified. Tranquility is a registered trademark of Carpenter Co.; Comfort Tech is a trademark of Carpenter Co.; 37.5 is a registered trademark of Cocona, Inc.; CertiPUR-US is a registered certification mark of Alliance for Flexible Polyurethane Foam, Inc.