Wiktionary
fell asleep
vb. (en-simple pastfall asleep)
Usage examples of "fell asleep".
I was there so long I fell asleep on the toilet, and later I dreamed about doing it but no blood ever came out, because I couldn't die.
I fell asleep on the beach, and when I woke up there was Tyler Durden, naked and sweating, gritty with sand, his hair wet and stringy, hanging in his face.
He fell asleep, thinking with pleasure of having her all to himself.
When Egg finally fell asleep, I carried him back to his room and his animals.