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
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
The family cat had to be put to sleep.
The mummies were carefully prepared for their eternal sleep.
WordNet 3.0 Sense Numbers: 4
He wiped the sleep from his eyes and got up.
WordNet 0.0 Sense Numbers: 1b