Perfect! We had purchased a *very* thick pillowtop mattress without my thinking about how on earth I'd find a comforter/duvet large enough to reach the appropriate length on the sides. This duvet was the only one I could find, at a price I could afford, that would fit. Because it's so large -- I got the super size king -- I had to go to the laundromat to use a commercial washer and dryer. It washed beautifully. I couldn't be happier!