Sleep Quality, Duration, and Consistency Are Associated with Better Academic Performance in College Students

Overview

Journal NPJ Sci Learn

Specialty Psychology

Date 2019 Oct 5

PMID 31583118

Citations 63

Authors

Kana Okano

Jakub R Kaczmarzyk

Neha Dave

John D E Gabrieli

Jeffrey C Grossman

Affiliations

Soon will be listed here.

Abstract

Although numerous survey studies have reported connections between sleep and cognitive function, there remains a lack of quantitative data using objective measures to directly assess the association between sleep and academic performance. In this study, wearable activity trackers were distributed to 100 students in an introductory college chemistry class (88 of whom completed the study), allowing for multiple sleep measures to be correlated with in-class performance on quizzes and midterm examinations. Overall, better quality, longer duration, and greater consistency of sleep correlated with better grades. However, there was no relation between sleep measures on the single night before a test and test performance; instead, sleep duration and quality for the month and the week before a test correlated with better grades. Sleep measures accounted for nearly 25% of the variance in academic performance. These findings provide quantitative, objective evidence that better quality, longer duration, and greater consistency of sleep are strongly associated with better academic performance in college. Gender differences are discussed.

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References

Duckworth A, Shulman E, Mastronarde A, Patrick S, Zhang J, Druckman J . Will Not Want: Self-Control Rather than Motivation Explains the Female Advantage in Report Card Grades. Learn Individ Differ. 2015; 39:13-23. PMC: 4395866. DOI: 10.1016/j.lindif.2015.02.006. View

Lee Y, Park J, Kim S, Cho S, Kim S . Academic performance among adolescents with behaviorally induced insufficient sleep syndrome. J Clin Sleep Med. 2014; 11(1):61-8. PMC: 4265661. DOI: 10.5664/jcsm.4368. View

Gaultney J . The prevalence of sleep disorders in college students: impact on academic performance. J Am Coll Health. 2010; 59(2):91-7. DOI: 10.1080/07448481.2010.483708. View

Onyper S, Thacher P, Gilbert J, Gradess S . Class start times, sleep, and academic performance in college: a path analysis. Chronobiol Int. 2012; 29(3):318-35. DOI: 10.3109/07420528.2012.655868. View

Harrison Y, Horne J . The impact of sleep deprivation on decision making: a review. J Exp Psychol Appl. 2000; 6(3):236-49. DOI: 10.1037//1076-898x.6.3.236. View

Rasch B, Born J . About sleep's role in memory. Physiol Rev. 2013; 93(2):681-766. PMC: 3768102. DOI: 10.1152/physrev.00032.2012. View

Diaz-Morales J, Escribano C . Social jetlag, academic achievement and cognitive performance: Understanding gender/sex differences. Chronobiol Int. 2015; 32(6):822-31. DOI: 10.3109/07420528.2015.1041599. View

Diekelmann S, Wilhelm I, Born J . The whats and whens of sleep-dependent memory consolidation. Sleep Med Rev. 2009; 13(5):309-21. DOI: 10.1016/j.smrv.2008.08.002. View

Zeek M, Savoie M, Song M, Kennemur L, Qian J, Jungnickel P . Sleep Duration and Academic Performance Among Student Pharmacists. Am J Pharm Educ. 2015; 79(5):63. PMC: 4571043. DOI: 10.5688/ajpe79563. View

10.

Haraszti R, Ella K, Gyongyosi N, Roenneberg T, Kaldi K . Social jetlag negatively correlates with academic performance in undergraduates. Chronobiol Int. 2014; 31(5):603-12. DOI: 10.3109/07420528.2013.879164. View

11.

Fogel S, Smith C, Cote K . Dissociable learning-dependent changes in REM and non-REM sleep in declarative and procedural memory systems. Behav Brain Res. 2007; 180(1):48-61. DOI: 10.1016/j.bbr.2007.02.037. View

12.

Wong M, Lau E, Wan J, Cheung S, Hui C, Mok D . The interplay between sleep and mood in predicting academic functioning, physical health and psychological health: a longitudinal study. J Psychosom Res. 2013; 74(4):271-7. DOI: 10.1016/j.jpsychores.2012.08.014. View

13.

Bixler E, Papaliaga M, Vgontzas A, Lin H, Pejovic S, Karataraki M . Women sleep objectively better than men and the sleep of young women is more resilient to external stressors: effects of age and menopause. J Sleep Res. 2009; 18(2):221-8. PMC: 3594776. DOI: 10.1111/j.1365-2869.2008.00713.x. View

14.

Dawson D, Reid K . Fatigue, alcohol and performance impairment. Nature. 1997; 388(6639):235. DOI: 10.1038/40775. View

15.

Becker S, Jarrett M, Luebbe A, Garner A, Burns G, Kofler M . Sleep in a large, multi-university sample of college students: sleep problem prevalence, sex differences, and mental health correlates. Sleep Health. 2018; 4(2):174-181. PMC: 5863586. DOI: 10.1016/j.sleh.2018.01.001. View

16.

Merikanto I, Lahti T, Puusniekka R, Partonen T . Late bedtimes weaken school performance and predispose adolescents to health hazards. Sleep Med. 2013; 14(11):1105-11. DOI: 10.1016/j.sleep.2013.06.009. View

17.

Johns M, Dudley H, MASTERTON J . The sleep habits, personality and academic performance of medical students. Med Educ. 1976; 10(3):158-62. DOI: 10.1111/j.1365-2923.1976.tb00432.x. View

18.

Durmer J, Dinges D . Neurocognitive consequences of sleep deprivation. Semin Neurol. 2005; 25(1):117-29. DOI: 10.1055/s-2005-867080. View

19.

Lim J, Dinges D . A meta-analysis of the impact of short-term sleep deprivation on cognitive variables. Psychol Bull. 2010; 136(3):375-89. PMC: 3290659. DOI: 10.1037/a0018883. View

20.

Walker M, Stickgold R . Sleep, memory, and plasticity. Annu Rev Psychol. 2005; 57:139-66. DOI: 10.1146/annurev.psych.56.091103.070307. View