nod off

US /nɑːd ɑːf/
UK /nɑːd ɑːf/
"nod off" picture
1.

to fall asleep, especially unintentionally

:
•
He kept nodding off during the boring lecture.
•
I was so tired, I almost nodded off at my desk.
:
doze offdrift offdrop offfall asleepsnooze
:
nodoffoff and onswitch offtake offget offkick off