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Updated: Jun 4, 2026

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Published on: March 8, 2018
Sleep quality in borderline personality disorder: a cross-sectional study.
Randy A Sansone1, Howard C Edwards, Jeremy S Forbis
1Department of Psychiatry and Internal Medicine, Wright State University School of Medicine, Dayton. Randy.sansone@khnetwork.org
Poor sleep quality is linked to borderline personality disorder symptoms. This study found significant associations between sleep issues and personality disorder measures in outpatients.
Area of Science:
- Psychiatry
- Sleep Medicine
Background:
- Borderline personality disorder (BPD) is a complex mental health condition.
- Sleep disturbances are frequently reported in individuals with BPD.
Purpose of the Study:
- To investigate the relationship between sleep quality and borderline personality disorder symptoms.
- To determine if specific aspects of sleep quality are associated with BPD traits.
Main Methods:
- A cross-sectional study surveyed 76 adult outpatients using the Pittsburgh Sleep Quality Index (PSQI).
- Borderline personality traits were assessed using the Personality Diagnostic Questionnaire-4 (PDQ-4) and the Self-Harm Inventory (SHI).
Main Results:
- Global PSQI scores significantly correlated with PDQ-4 and SHI scores (P < .01).
- Specific PSQI components like subjective sleep quality, sleep duration, and daytime dysfunction were associated with PDQ-4 scores (P < .05).
- Sleep latency showed a significant association with combined PDQ-4 and SHI scores (P < .05).
Conclusions:
- Individuals exhibiting borderline personality symptomatology report poorer overall sleep quality.
- These findings highlight a significant link between sleep quality and BPD, suggesting potential targets for intervention.
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