Summary: 18 Years* Who Reported an Average of 6 Hours of Sleep † per 24-Hour Period, by Sex and Age Group --- National Health Interview Survey, United States, 1985 and 2006 § * N = 23,679 (10,457 men and 13,222 women). † Based on response to the following question: On average, how many hours of sleep do you get in a 24-hour period? Respondents could
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