I purchased the cotton comforter cover in a queen size together with the queen deluxe medium weight comforter thinking that they will fit well together being from the same seller. I washed the cover according to the instructions. The cover is 3 in. shorter and 5 in. narrower than the comforter. Consequently, the comforter is bunched up inside. There is no size tag on the cover. In addition, the flange became twisted after washing on one side only. I contacted customer service by email (with a photo) twice within a week upon receipt of the item but have yet to hear from them. I also wrote my review of the comforter cover that was not posted online.