Sleep quality in students: Associations with psychological and lifestyle factors

Abstract Disturbed sleep is prevalent in adult populations and has been associated with negative health outcomes. This cross-sectional study assessed how psychological lifestyle factors relate to subjective quality university students. In a large ( N = 1114) sample of Dutch students we chronotype (Morningness-Eveningness Questionnaire), depressive symptoms (Quick Inventory Depressive Symptoms), cognitive emotion regulation styles (Cognitive Emotion Regulation substance use (caffeine, alcohol, smoking, cannabis), analysed whether these were related (Pittsburgh Sleep Quality Index). The was predominantly (77.8%) female, mean age 21.1 (SD 2.9) years, 42.8% had clinically significant poor quality. More eveningness (B −.05, p .001), more .31, less the strategy ‘putting into perspective’ −.06, .02) smoking .53, independently poorer eveningness, symptoms, style