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Effects of Rumination and Worry on Sleep
Olivia H Tousignant1, Nicholas D Taylor1, Michael K Suvak1
1Suffolk University.
Behavior Therapy
|April 30, 2019
Summary
High levels of rumination and worry amplify the stress-sleep connection via pre-sleep arousal (PSA). Cognitive arousal plays a larger role than somatic arousal in this relationship, impacting insomnia treatment.
Area of Science:
- Psychology
- Sleep Science
- Cognitive Behavioral Therapy
Background:
- The relationship between stress and sleep is complex.
- Pre-sleep arousal (PSA) is a proposed mediator between stress and sleep quality.
- Cognitive arousal is hypothesized to mediate this relationship more strongly than somatic arousal.
Purpose of the Study:
- To directly compare the mediating effects of cognitive and somatic arousal in the stress-sleep relationship.
- To investigate the moderating roles of rumination and worry in the stress-PSA-sleep pathway.
- To examine the differential impact of cognitive versus somatic arousal on sleep quality.
Main Methods:
- Multilevel moderated mediation analysis was employed.
- 178 US-based participants completed online surveys and daily diaries over 2 weeks.
- Measures included baseline rumination/worry tendencies, daily stress, PSA, and sleep quality.
Main Results:
- Indirect effects from stress to sleep quality via PSA were significant, moderated by rumination and worry.
- Higher levels of rumination and worry strengthened the association between stress and PSA.
- Cognitive arousal consistently explained more variance in the stress-sleep relationship than somatic arousal.
Conclusions:
- Repetitive negative thinking (rumination and worry) exacerbates the negative impact of stress on sleep through PSA.
- Cognitive arousal is a more significant factor than somatic arousal in the stress-sleep pathway.
- Findings support the integration of cognitive arousal and repetitive negative thought management in cognitive behavioral treatments for insomnia.
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