7
The number of hours of sleep per night that adults need to avoid the health risks of chronic inadequate sleep, according to the American Academy of Sleep Medicine.
56 percent
The percentage of Americans who say they get "as much sleep as needed," according to a 2013 Gallup poll. In a similar 1993 poll, 67 percent of Americans felt they were getting enough sleep. In contrast, 43 percent of Americans in the latest poll believed that they would feel better with more sleep; only 32 percent felt that way in 1993.
9 percent
The percentage of Americans who report they have been diagnosed with a sleep disorder by a doctor or medical professional, according to the National Sleep Foundation's 2015 Sleep in America poll. Of those, 71 percent have sleep apnea and 24 percent have insomnia.
30 minutes
The difference in average nightly sleep duration between people who rated their health "good" or "excellent" versus those who rated it "fair" or "poor," according to the 2015 Sleep in America poll.
43.5 percent
The percentage of single mothers who get fewer than the recommended seven hours of sleep, on average, according to a January 2016 National Center for Health Statistics analysis. In contrast, 31.2 percent of mothers in two-parent families and 29.7 percent of women who live without children get less than the recommended amount of sleep. Meanwhile, 37.5 percent of single fathers, 34.1 percent of dads in two-parent families and 32.3 percent of men who live without children get less than the recommended amount of sleep.
