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.