Start Time and Students' Sleep

Impact on Total Sleep

"Perhaps the most surprising finding was the discovery that Minneapolis high school students continue to get an hour’s more sleep each school night than is the case for students whose schools begin an hour earlier. The increased sleep was a finding after the first year of the late start, and it continued to be true 4 years into the change. This is contrary to the fears and expectations that a later start would result in students staying awake an hour later on school nights. Instead, students in Minneapolis high schools get 5 more hours of sleep per week than do their peers in schools that start earlier in the day."  

-Kyla Wahlstrom
Sources:

Paksarian D, Rudolph KE, He J-P, Merikangas KR. School Start Time and Adolescent Sleep Patterns: Results From the US National Comorbidity Survey—Adolescent Supplement. American Journal of Public Health. 2015;105(7):1351-1357.


Hansen M1, Janssen I, Schiff A, Zee PC, Dubocovich ML.The impact of school daily schedule on adolescent sleep. Pediatrics. 2005, Jun;115(6):1555-61.


Wolfson A, Spaulding N, Dandrow C, Baroni E, Middle School Start Times: The importance of a good night’s sleep for young adolescents, Behavioral Sleep Medicine, 5:194-209, 2007


Dexter D, Bijwadia J, Schilling D, Applebaugh G, Sleep, Sleepiness and School Start Times: A Preliminary Study, Wisconsin Medical Journal, 2003, Vol 102, No 1


Lufi D, Tzichinsky O, Hadar S, Delaying School Starting Time by One Hour: Some Effects on Attention Levels in Adolescents, Journal of Clinical Sleep Medicine, 2011, Vol 7, No 2, p137-143.  Download PDF from this page


Kirby, Maggi & D’Angiulli, School Start Times and the Sleep-Wake Cycle of Adolescents: A Review and Critical Evaluation of Available Evidence, Educational Researcher, March 2011 Vol 40, No 2, 56-61


Owens, J. A., Belon, K., & Moss, P. (2010). Impact of delaying school start time on adolescent sleep, mood, and behavior. Archives of Pediatrics & Adolescent Medicine, 164(7), 608-14.


Kyla Wahlstrom, Changing Times: Findings From the First Longitudinal Study of Later High School Start Times, NASSP Bulletin, Vol. 86 No. 633 December 2002, p3-21

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