This Duck Feather topper is fantastic for an all year-round comfortable sleep. This will add a luxurious feel and excellent protection to your mattress. With a filling of 100% Class 1 Duck Feathers, it will help create the perfect night’s sleep and add an extra 3cm in depth. The topper has a 100% Cotton down proof cover which has a 233 Thread Count. 233 Thread count Machine washable Tumble dry low heat Non iron 100% Cotton Filling: 100% Duck Feather Available in: Double - King - Single - Super King 4.49 5 DL D False Bedding 5.99 5.99 BHS Duck Feather Mattress Enhancer | Kaleidoscope