Flip to choose your comfort preference with the Comfort Tech 3” Dual Comfort Reversible Foam Mattress Topper. The 1.5″ of Serene foam features Supportive Air Technology and is encased in a cover designed with 37.5 Technology for cool-to-the-touch comfort. Cover fabric enhanced with 37.5 Technology helps regulate the temperature your body experiences while you sleep. Flip to the 1.5″ of Tranquility Active Response Foam side for breathable and supportive cloud-like coziness. Serene Foam and Tranquility Foam are CertiPUR-US certified. • Includes (1) Mattress Topper • 1.5” of Serene foam features Supportive Air Technology; 1.5” of Tranquility foam offers superior airflow • Removable cover is designed with 37.5 Technology for cool-to-the-touch comfort • Spot clean only foam; removable cover is machine-washable for easy care • Foam is proudly manufactured in the USA; cover is imported • 3-Year Limited Warranty • Serene and Tranquility are registered trademarks of Carpenter Co.; Comfort Tech and Supportive Air Technology are trademarks 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.