sleep-n; 4 Senses

Sense Number 1: cyclical physiological rest

Commentary: SLEEP[+state][+physiological][+cyclical][+rest]

How long could the crew continue to function without sleep?
Bob only got three hours of sleep last night.
The puppy was in a sound sleep curled up with its blanket.
Our mattress will give you a great night's sleep or your money back.
That night, he slept the sleep of the just, having proven his innocence in court.

WordNet 3.0 Sense Numbers: 1, 3

Sense Number 2: a state of quiescence

Commentary: SLEEP[+state][+quiescence]

The computer saves its battery considerably while in sleep mode.
The world seemed in a deep sleep under the silent falling snow.
The ruins lay untouched through the sleep of centuries.

WordNet 3.0 Sense Numbers: 2

Sense Number 3: euphemism for death

Commentary: SLEEP[+state][+physiological][+permanent][+death]

The family cat had to be put to sleep.
The mummies were carefully prepared for their eternal sleep.

WordNet 3.0 Sense Numbers: 4

Sense Number 4: sticky eye secretion produced during sleep

Commentary: SLEEP[+substance][+natural][+secretion][+eye][+from_sleep]

He wiped the sleep from his eyes and got up.

WordNet 0.0 Sense Numbers: 1b