Abstract
Higher levels of experiential avoidance are associated with increased risk for depression. Here, we examined the mediating roles of pre-sleep arousal and sleep quality in the relationship between experiential avoidance and depressive symptoms. Undergraduate students (N = 173) completed self-reports of experiential avoidance, pre-sleep arousal, habitual sleep quality, and depressive symptoms. The indirect effect of experiential avoidance on depressive symptoms through pre-sleep arousal and sleep quality was examined in a set of serial mediation analyses. Effect estimates supported a pathway in which higher experiential avoidance was associated with heightened pre-sleep arousal, and heightened pre-sleep arousal was associated with poor sleep quality. Poor sleep quality, in turn, was associated with increased depressive symptoms. Follow-up analyses showed that the indirect path was driven by cognitive, rather than somatic, arousal. Future research assessing the role of pre-sleep cognitive arousal in the relationship between experiential avoidance and mood disruption using longitudinal design is warranted.
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