1 to sleep

2 to lie down

1 to go to bed

2 to sleep

1 to fall asleep

1 to suffer from insomnia

1 sleepiness

1 without stopping to sleep or have a rest (idiom)

1 to sleep on the ground (idiom)

1 lit. I'm drunk and would like to sleep (idiom)

2 (used to indicate one's sincere and straightforward nature)

1 lit. to live and sleep together (idiom); fig. a close friendship

1 drowsy

2 sleepy (idiom)