This firm mattress topper gets its support from the springy feather quills in the base layer. However, unlike a traditional feather bed, it has a layer of soft down on top to provide a small buffer against the feather. If your mattress is too soft and you need more support, this is for you! Features: Down Pillow Top Design: Enhances a traditional feather bed with the luxury of a down filled pillow top Elastic Bands: Straps secure the Feather Bed to the corners of your mattress 255 Thread Count: Prevents Down/Feather from escaping 100% Cotton: Fine cotton allows the Down to breathe Small White Goose Feather: Bottom layer filled with small white goose feather to provide firm support you need White Down: Down pillow top filled with high loft White Down provides the softness and luxury you want 550+ Fill Power Down: Insulates and lofts 550+ cubic inches per ounce of fill Hypoallergenic Guaranteed against manufacturing defects for 5 years OEKO-TEX Standard 100 Certified Imported