I don't know what other people call them; I don't even remember where I came up with the term but it's to throw over your lap during these cool nights when you need a little warmth. Ususally is long enough to come up just over your waist and then a little past your toes. Wide enough to cover you with a couple of inches left over. Most of mine are about 41"X55" except the one I made my hubby is a little longer because he's quite tall. When not in use, we just fold them and lay over the back of our recliners.