You can use the Down Sleeping Wrap #5 either as an additional warming layer or as a stand-alone quilt. The end of this down comforter can be buttoned to form a foot box, which can be closed with a drawstring. The whole thing is then attached to your mat using straps on the sides. In no time at all, you have a sleeping bag for all those who like a little more space. Whether as a blanket or sleeping bag, thanks to the down filling and the ultra-light outer material, the Wrap #5 can be stored in a space-saving way and is always with you.