Average Bedtime by Age for Children
According to the American Academy of Sleep Medicine and the American Academy of Pediatrics, recommended sleep durations vary by age. For children aged 6 to 12, the recommended sleep is 9 to 12 hours per 24 hours, while teenagers aged 13 to 18 should get 8 to 10 hours. Centers for Disease Control and Prevention data show that many middle and high schoolers in the U.S. report sleeping 7 hours or less on school nights. The National Sleep Foundation suggests that a typical school-age bedtime falls between 7:30 p.m. and 9:00 p.m., with high schoolers often aiming for 9:00 p.m. to 10:30 p.m. to meet these targets. Sleep Foundation guidelines link age-specific bedtime windows to daytime alertness and academic performance.
CDC data from recent national surveys indicate that only about 22% of U.S. high school students sleep 8 or more hours on an average school night. Early school start times are a major factor, with the American Academy of Pediatrics recommending that middle and high schools start no earlier than 8:30 a.m. to align with adolescent circadian rhythms. The RAND Corporation has estimated that later school start times could contribute billions of dollars to the U.S. economy over time through improved academic outcomes and reduced accident risk. Practical bedtime strategies include a consistent sleep schedule, limited screen exposure before bed, and a dark, cool bedroom environment.
Average Bedtime by Age for Adults
For adults aged 18 to 60, the AASM and Sleep Research Society recommend at least 7 hours of sleep per night for optimal health. The CDC reports that about 1 in 3 U.S. adults does not get enough sleep on a regular basis. Surveys show that the average adult bedtime in the U.S. is around 11:00 p.m. to 11:30 p.m., with work schedules, commuting times, and evening screen use as key influences. The American Heart Association has noted that consistently sleeping fewer than 7 hours is associated with higher risks of obesity, high blood pressure, and heart disease.
Workplace data from the Bureau of Labor Statistics show that full-time workers in the U.S. average about 8.5 hours of work per day, which can push bedtimes later, especially for those with long commutes or shift work. The National Institutes of Health highlights that irregular sleep timing, such as large differences between weekday and weekend bedtimes, can disrupt the body's internal clock and reduce sleep quality. Employers and public health programs increasingly promote sleep education and flexible schedules to help workers achieve consistent, sufficient rest.
Factors That Influence Bedtime Patterns
Several factors shape average bedtime by age, including school and work schedules, technology use, and household routines. The National Sleep Foundation notes that exposure to blue light from phones, tablets, and computers in the hour before bed can suppress melatonin production and delay sleep onset. Families with younger children often adopt earlier bedtimes to allow for morning routines, while teenagers tend to have later chronotypes that favor later sleep and wake times. Mattress and bedding choices also affect how quickly people fall asleep and how long they stay asleep.
Demographic data show that bedtime patterns vary across regions and socioeconomic groups. The CDC's Behavioral Risk Factor Surveillance System and the National Health and Nutrition Examination Survey provide large datasets used to track sleep trends over time. Public health agencies use these data to set guidelines and target interventions for groups with insufficient sleep.