Zonk out.
Fall asleep quickly.
To "zonk out" means to fall asleep very quickly and deeply, often out of sheer exhaustion. For example, after a long day of vigorous hiking, one might zonk out the moment they hit the couch, indicating an almost instantaneous transition to sleep.
Example Sentences
I zonked out as soon as my head hit the pillow.
I fell asleep instantly as soon as I lay down.
After the long trip, we all zonked out in the hotel room.
After the long trip, we all fell asleep immediately in the hotel room.
He zonked out during the lecture and missed important notes.
He fell asleep during the lecture and missed important notes.
