The Northerner

By the numbers

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5 to 12-year-olds need nine to 11 hours of sleep per night.

12 to 17-year-olds need eight-and-a-half to nine-and-a-half hours of sleep per night.

18-year-old adults and older need seven to eight hours of sleep per night.

Source: U.S. Dept. of Health and Human Services

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The Independent Student Newspaper of Northern Kentucky University.
By the numbers