Binge sleeping is basically to sleep to pass long amounts of time even though one is not actually tired. Binge sleeping is also to sleep for certain amounts of time until the person or persons forgets something and/or it is no longer on their mind. Binge sleeping could also be what happens when someone is depressed and feel the need for exaggerated amounts of sleep. NOT napping.
Lilly was binge sleeping to forget the drama.
I was binge sleeping until the movie-date.