In European terms, you could say it is decorative duvet. (Not a duvet COVER, because it *is* the duvet; it isn't meant to have a cover added to it.) Same size, same relative thickness. However, the filling it in it is normally NOT down; it is not meant to be that warm. In the old days it would have had a layer of thick cotton flannel sewn into the middle; these days the fill is usually washable polyester batting.)