Electronic media and sleep
The use of computers (including devices such as smartphones, tablet computers and laptops) by children and adolescents before bed has been associated with a reduction in the hours of sleep experienced by frequent users, along with a decreased quality of sleep, in most cases. The results of computer use at night have been linked with tiredness.
A 2010 review concluded that "the use of electronic media by children and adolescents does have a negative impact on their sleep, although the precise effects and mechanisms remain unclear", with the most consistent results associating excessive media use with shorter sleep duration and delayed bed times. A 2016 meta-analysis found that "Bedtime access and use of media devices was significantly associated with inadequate sleep quantity; poor sleep quality; and excessive daytime sleepiness".
Many apps promise to improve sleep by filtering out blue light produced by media devices; there have been no large studies to assess whether such apps work. Some users express dissatisfaction with the resultant orange tint of screens. Some people use blue-blocking glasses, for the purpose of attempting to block out blue light both from electronic media and from other artificial light sources.
- Cain, Neralie; Gradisar, Michael (15 February 2010). "Electronic media use and sleep in school-aged children and adolescents: a review". Sleep Medicine. 11 (8): 735–742. doi:10.1016/j.sleep.2010.02.006. PMID 20673649.
- Carter, Ben; Rees, Philippa; Hale, Lauren; Bhattacharjee, Darsharna; Paradkar, Mandar S. (1 December 2016). "Association Between Portable Screen-Based Media Device Access or Use and Sleep Outcomes" (PDF). JAMA Pediatrics. 170 (12): 1202–1208. doi:10.1001/jamapediatrics.2016.2341. PMC 5380441. PMID 27802500.
- "American Academy of Pediatrics Announces New Recommendations for Children's Media Use". www.aap.org. Retrieved 13 March 2018.
- "Apps Can Cut Blue Light From Devices, But Do They Help You Sleep?". NPR.org. 2017. Retrieved 13 March 2018.