About one-third of American adults regularly take a daytime nap, according to a new national survey.
The rate of napping was even higher among people who'd exercised in the past 24 hours, those who had trouble sleeping the night before, blacks, men older than 50, men and women over 80, people who aren't happy, and poorer people, The New York Times reported.
Unemployed people were more likely to nap during the week than on weekends and employed people were only slightly more likely to have a nap on weekends, according to the Pew Research Center Social and Demographics Trends survey.
It also found that women were more likely than men to have trouble sleeping at night, along with people whose annual income is less than $20,000, and those dissatisfied with their personal financial situation, regardless of their income, the Times reported.