Currently, I own 5 sets of bed sheets (including matching pillowcases) for my bed. I have 2 white sets, one grey, one beige, and one brown. I also have a summer and winter duvet. I have a nice, high-end duvet cover for the summer duvet; however, I just purchased the winter duvet and I am on the lookout for a nice covet for it. They seem to be very expensive. Almost as expensive as the actual duvet. Just curious about what others view as reasonable.