Experience superior airflow with the Comfort Tech 2” Mattress Topper Featuring Tranquility Foam. Designed to offer excellent support and increased durability, this mattress topper will help lead you to a more peaceful bedtime experience. Tranquility Foam is CertiPUR-US certified. Tranquility is a registered trademark of Carpenter Co.; Comfort Tech is a trademark of Carpenter Co.; CertiPUR-US is a registered certification mark of Alliance for Flexible Polyurethane Foam, Inc.