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Updated: Aug 28, 2025

Author Spotlight: Unveiling the Connection Between Sleep Disorders and Cognitive Symptoms in Depression
Published on: April 26, 2024
The relationship between sleep quality and depression: Critical roles of reflective and brooding rumination and
1Department of Basic Psychology, School of Psychology, Third Military Medical University (Army Medical University), Chongqing, China.
Abstract:
There is a complex interplay between sleep problems and depression. This study explored the possible effects of rumination and dysfunctional beliefs about sleep on the relationship between sleep quality and depression. A cross-sectional survey of 1240 Chinese adults was conducted to assess the possible relationships. The results showed a chain mediating effect of reflection rumination and brooding rumination on the relationship between sleep quality and depression, accounting for 38.91% of the total variance. A moderating role of unreasonable attitudes about sleep was also discovered among the study participants, which enhanced the relationship between reflection and brooding, leading to a further increase in this relationship. Individually-tailored approaches targeting rumination and cognition may more effectively alleviate depression or co-morbid sleep problems and depression than the current standards of care.
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