I have been searching for a duvet with natural filling (I definitely didn't want to add any more polyester to the world, and was upset to find out how feather and down is sourced) and I have found it. I have been using my new "medium Deluxe Washable Wool Duvet" for a week, and can truthfully say so far that it is one of the best purchases I have ever made. It is very soft and comfortable, not too heavy, not too light and keeps me warm without overheating (and, as a woman of a certain age, this is important!) My husband was wary, as any clothing/blankets with wool in make him itch, but he loves it too! Delivery was within 2 days. We will never look back!