FIGURE 4-2 Sample distribution of sleep patterns.
SOURCE: Wolfson and Carskadon (1998).
The National Academies of Sciences, Engineering, and Medicine 500 Fifth St. N.W. | Washington, D.C. 20001
"4 Functional and Economic Impact of Sleep Loss and Sleep-Related Disorders."
Sleep Disorders and Sleep Deprivation: An Unmet Public Health Problem.
Washington, DC: The National Academies Press, 2006.
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