Crist, C. (2018, April 18). Later middle school start times tied to longer sleep for kids. Retrieved April 19, 2018

Students attending middle schools with start times after 8 a.m. get 17 more minutes of nightly sleep on average, than those with earlier start times, according to a study in the Journal of School Health. Researchers also found less daytime sleepiness among middle-school students with later school-start times.