11.   Slaves worked sugar plantations and could expect no more than four hours of sleep a night during peak production times.

12.   Studies show Americans now average seven hours of sleep a night, with about a third getting six hours or less.

13.   The actual bills are being written by overstressed staff members working on two or three hours sleep a night.

14.   The article also said that the drivers themselves said they needed about seven hours of sleep a night.

15.   They are the ones who sing him songs and read him stories, who are there when he awakens each morning and goes to sleep each night.

16.   They sleep night after cool, rainy night for the right to buy prized center court seats the next morning.

17.   William Bloomberg would not sleep nights when his son took the car and stayed out late on a date.

18.   Airline pilots have had to work extra-long shifts, sometimes getting only a few hours of sleep a night.

19.   She never slept that night -- she held the youth as he cried about pain in a hand he no longer had.

20.   We can sleep night and we feel totally at ease.