Two reports released by the Centers for Disease Control and Prevention Thursday reveal the sleep habits of adults in the United States, including their increasing tendency to get fewer than seven hours a night, hurting their ability to concentrate and raising the risk of driving.
In one report, based on a survey of nearly 75,000 people in 2009, CDC researchers examined four unhealthy sleep behaviors: inadequate sleep, snoring, nodding off during the day and nodding off while driving.
Thirty-five percent reported getting fewer than seven hours of sleep on an average night, 48 percent reported snoring, 38 percent reported unintentionally falling asleep during the day sometime in the previous month, and nearly 5 percent said they'd nodded off while driving in the previous month.
The number of U.S. adults reporting that they get fewer than seven hours of sleep rose from 1985 to 2004, and that increase could be attributed to trends such as the increased use of technology and more people working night shifts, the CDC said.
Among people ages 25 to 54, nearly 40 percent reported getting fewer than seven hours of sleep. People over 65 were the least likely to say they got fewer than seven hours of sleep — about 25 percent of them reported this.
About 46 percent of those currently unable to find work said they got fewer than seven hours of sleep, compared with 37 percent of employed people. And, of the 12 states in which adults were surveyed, Minnesota had the lowest rate (27 percent) of residents who got fewer than seven hours of sleep, while 45 percent of Hawaiians said the same.
The National Sleep Foundation suggests seven to nine hours of sleep per night for adults.