I purchased a down comforter that, later come to find out, was an unconventional size. I looked everywhere for a high thread count duvet cover in brilliant white to cover my comforter. I found this one, and being 600 tc, I decided to pull the plug and purchase it. Fast delivery. Perfect size! Also sometimes after washing the 100% cotton, in spite of a higher thread count, it can become scratchy. Well I followed the washing instructions on the tag, and I tell you it is extremely soft! I am very happy with my purchase!