Abstract
Abstract Introduction The relationship between anxiety and sleep has been well-established, with many studies demonstrating the relationship between anxiety and reduced REM time, increased sleep latency, and reduced sleep efficiency. Anxiety sensitivity, or the fear of experiencing anxiety-related sensations, has also been associated with increased sleep latency and sleep dysfunction. This delay in sleep onset may be explained by increased arousal, both physical and cognitive, immediately before sleep related to worry or anxiety. The current study examined the relationship between anxiety and subjective sleep quality through pre-sleep arousal and investigated the moderating effect of anxiety sensitivity. Methods Participants (n=322) were recruited from Amazon’s MTurk site, with most identifying as female (58.5%) and White/Caucasian (84.4%) and with an average age of 37.51 (SD = 12.12). Participants completed the Daily Assessment of Symptoms - Anxiety Scale (DAS-A), the Anxiety Sensitivity Index (ASI), the Pre-Sleep Arousal Scale (PSAS) and the Pittsburg Sleep Quality Index (PSQI). A moderated mediation analysis was conducted using Model 58 in PROCESS for SPSS. Results Results indicated that pre-sleep arousal partially mediated the relationship between anxiety and the dichotomous sleep quality variable while controlling for the covariates of age, and therapy participation, (a1= .186, p<.001, b1= .113, p<.001, c’= .038, p<.001). Additionally, the conditional effects and interactions of the moderating anxiety sensitivity variable were significant in both pathways (a1: F=24.702, p<.001; b1: χ 2 = 5.255, p=0.22). Conclusion These results help to identify potential mechanisms and conditions of the relationship between anxiety and sleep quality and contribute to the development of evidence-based interventions for sleep disturbance or other sleep complaints in individuals experiencing anxiety and anxiety symptoms. Support N/A
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