Abstract:
Introduction: People perform better when they have a good sleep but the smartphone usage is the one activity that people do before bedtime which can interrupt their sleep. So, this study aimed to describe the association between using smartphone before bedtime and sleep quality of undergrad student of Chulalongkorn University. Methodology: This is the cross-sectional study. The sample size is 423 students, both male and female. There are 4 sections of the questionnaire; 1) General Information and Covariate factors, 2) Stress, 3) Smartphone Use Behavior and Mobile Phone Problematic Use Scale and 4) Sleep Quality (PSQI). Collecting the data by self-report. The descriptive statistic and Chi-square were used to analyze the data. Result: The study shows 96.9% of the participants use the smartphone before bedtime, besides 90.8% of the use it in bed. The Mobile Phone Problematic Use Scale (MPPUS) with the sleep quality is in poor level with 63.5%. The General Information (age and monthly allowance), covariate factor (caffeine drink and stress) and smartphone use in bed are significantly associated with sleep quality also in significant association with sleep quality (p < 0.003) Discussion: Overall, all the result has showed some gap that the participant is lack of concern about the smartphone use before bedtime with the sleep quality, the raising of smartphone use it not only rise among undergraduate student, but in every age group. Therefore, this problem should be solved by creating a campaign to educate the people, so that they can be aware of.