Abstract

Are Daytime Sleepiness and Sleep Quality Associated with Physiological and Psychological Stress Responses?

This study focuses on investigating the relationship between sleep quality, daytime sleepiness, and physiological and psychological stress responses of university students. In this study, a correlational-predictive research method was used and five different instruments; Personal Information Form, Questionnaire for Physiological Stress Response and Questionnaire for Psychological Stress Response, Epworth Sleepiness Scale, and Sleep Quality Scale were applied. The participants consisted of 295 university students (F=229, M=66, Mean Age=21). The data was analyzed by zeroorder correlations and multiple regression analysis. The results revealed that both physiological and psychological stress responses are explained by a linear combination of sleep quality and daytime sleepiness. Moreover, sleep quality negatively predicted physiological stress response while it positively predicted psychological stress response. At the same time, daytime sleepiness positively predicted physiological stress response while it negatively predicted psychological stress response. These findings speculate about the nature of the relationships determined in the study

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