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Electronic Device Use before Bedtime and Sleep Quality among University Students

Department of Nursing, Duy Tan University, Da Nang 550000, Vietnam
School of Nursing, Chung Shan Medical University, Taichung 40201, Taiwan
School of Nursing, China Medical University, Taichung 406404, Taiwan
Department of Nursing, China Medical University Hospital, Taichung 404332, Taiwan
Department of Nursing, Asian University, Taichung 41354, Taiwan
Authors to whom correspondence should be addressed.
Academic Editors: Alessandro Musetti, Christian Franceschini and Giuseppe Plazzi
Healthcare 2021, 9(9), 1091;
Received: 11 July 2021 / Revised: 8 August 2021 / Accepted: 18 August 2021 / Published: 24 August 2021
(This article belongs to the Special Issue Sleep Quality and Digital Media)
Using electronic devices before bedtime impacts sleep quality and has become a major public health issue. This study aims to investigate the associations between electronic devices (EDs) use before bedtime and sleep quality in Vietnamese university students. A total of 369 university students from three departments were recruited. Participants completed self-report surveys, including demographic characteristics, lifestyle, ED-use behaviors, the Pittsburgh Sleep Quality Index, and the Center for Epidemiologic Studies Depression Scale. A total of 48.8% of the students experienced poor sleep quality, and 98.1% reported using at least one type of ED every day within two hours before bedtime. Smartphones are the most used devices (92.3%). ED usage within two hours before bedtime (p = 0.031), lack of exercise (p = 0.006), alcohol consumption (p = 0.025), and coffee intake after 4 pm (p = 0.018) were associated with poor sleep quality. ED use near bedtime for a duration longer than 30 min (p = 0.001) and depression (p < 0.001) were associated with poorer sleep quality among university students. ED use near bedtime more than 30 min was significantly associated with poorer sleep quality after adjusting depression status, exercise, and caffeine/alcohol intake in the latter part of the day. This study emphasizes the importance of adequate sleep and restriction of ED use near bedtime, which are necessary for better sleep in university students. View Full-Text
Keywords: sleep quality; electronic devices use; university students sleep quality; electronic devices use; university students
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MDPI and ACS Style

Pham, H.T.; Chuang, H.-L.; Kuo, C.-P.; Yeh, T.-P.; Liao, W.-C. Electronic Device Use before Bedtime and Sleep Quality among University Students. Healthcare 2021, 9, 1091.

AMA Style

Pham HT, Chuang H-L, Kuo C-P, Yeh T-P, Liao W-C. Electronic Device Use before Bedtime and Sleep Quality among University Students. Healthcare. 2021; 9(9):1091.

Chicago/Turabian Style

Pham, Hue Thi, Hsiao-Ling Chuang, Ching-Pyng Kuo, Tzu-Pei Yeh, and Wen-Chun Liao. 2021. "Electronic Device Use before Bedtime and Sleep Quality among University Students" Healthcare 9, no. 9: 1091.

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