Lost hours of sleep

The American Academy of Sleep Medicine recommends that adults get at least seven hours of sleep per night. About 40 percent of Americans don't meet that bar.

Five hours or less

Six hours

Seven hours

Eight hours

Nine or more

1942

3%

8%

25%

45%

14%

1990

14%

28%

30%

22%

5%

2001

16%

27%

28%

24%

4%

2004

14%

26%

28%

25%

6%

2013

14%

26%

25%

29%

5%