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.