Sleep patterns and sleep deprivation recorded by actigraphy in 4th-grade and 5th-grade students

Ao Li, Siteng Chen, Stuart F. Quan, Graciela E. Silva, Charlotte Ackerman, Linda S. Powers, Janet M. Roveda, Michelle M. Perfect

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


Objective: This study investigates sleep patterns of fourth- and fifth-grade students using actigraphy. Methods: The study included 257 students enrolled in a Southwestern US school district who participated in a novel sleep science curriculum during the Spring 2016–17 and Fall 2017-18 semesters and met the study inclusion criteria. As part of this curriculum, participants underwent 5–7 days of continuous wrist actigraphy and completed an online sleep diary. Results: Approximately two-thirds of the 9-11-year-old fourth- and fifth-grade students slept less than the minimum 9 h per night recommended by both the American Academy of Sleep Medicine/Sleep Research Society and the National Sleep Foundation. The sleep midpoint time on weekends was about 1 h later than on weekdays. There was a significant effect of age on sleep duration. Compared to 9-year old students, a larger proportion of 10-year old students had a sleep duration less than 8.5 h. Boys had shorter sleep duration than girls, and a larger percentage of boys obtained less than 9 h of sleep compared to girls. Conclusions: Insufficient sleep is a highly prevalent condition among 9-11-year-old fourth- and fifth-grade elementary students. Importantly, there is a difference between sleep patterns on weekdays and weekends which may portend greater problems with sleep in adolescence and young adulthood.

Original languageEnglish (US)
Pages (from-to)191-199
Number of pages9
JournalSleep Medicine
StatePublished - Mar 2020


  • Actigraphy
  • Children
  • School age
  • Sleep deprivation
  • Sleep patterns

ASJC Scopus subject areas

  • General Medicine


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