If you want a rug that is as soft as a marshmallow--use a knit fabric. I had some new pink knit from the little kid days and cut in strips and it is the softest ever. An ex-large T-shirt could be cut in one long strip until you get to the under arm seam. Must find my tool and start cutting cotton fabrics to make another one.
Aunt Philly can make one a day because she created the method, not in my lifetime can I make one in a day.