Keep that silk scarf on!

I notice that I go to bed with my silk scarf and wake up with it off. Seriously I tie it in all sorts of ways and can never get it to stay. Over the past 2 days I have decided to put a head band on it. Its thin and almost the same colour as the scarf. All I can say is that the scarf has not fallen off in 2 days. And it doesnt have to be tight either. Just something that is flexible and will move with your head when you toss around at nights. Try it.