Giant pandas sleep for about eight to 12 hours a day.
She tended to stay up 20 to 25 hours at a time, sleeping about 10 hours.
I end up sleeping about 5 hours a night.
He must have slept about two hours before the telephone had wakened him.
For years, she had slept about seven hours a night.
For about the last three weeks he only slept about two hours a day.
Bill slept about four hours a night and was the hardest working person I knew.
By a year old they may nap just once or twice a day and sleep about 11 hours a night.
Charlie looked at his watch, saw that he had slept about four hours.
Most seven year olds sleep for about ten hours at a stretch.
