fall asleep, get to sleep,
(hovor.) drop/ (BrE) get off (to sleep)
I'm falling asleep.,
(hovor.) I'm dropping off.
Vždy zaspáva pri televízii.
He always falls asleep in front of the TV.
Zaspal za volantom.
He fell asleep behind the wheel.
Nemohol som zaspať.
I couldn't fall asleep., I couldn't get to sleep.
Zaspali/Spia na vavrínoch.
They are resting on their laurels.