I don’t think I’d classify this duvet as lightweight. It’s like having a regular comforter. I have a standard king mattress and this is just a tad bit short as you can see by the photo. I’m sure my duvet cover will make up for the length. When I make my bed, I like the covers to cover the entire mattress. It’s a good quality for the price. (update) This is very warm when used with a duvet cover. I might have to stow away until winter time.