The Sealy Prestige Temperature Balancing Duvet insulates you when you are cold and wick away moisture when you are warm for the perfect night's sleep. The luxuriously soft, 500-thread count, top layer is made with 100% cotton for ultimate comfort. Adaptive™ advanced wicking technology responds to your body temperature throughout the night so that you are not too hot and not too cold. The Eternaloft™ hypoallergenic fill and the box quilt design ensure that your comforter will maintain is shape and not shift over time. Corner loops make this the perfect fit for any duvet cover Adaptive™ advanced wicking technology Shell: 100% cotton Fill:Eternaloft™ hypoallergenic Machine wash