Sleep and Psychiatric Comorbidities: The Clinical Overlap.

Thomas, Davis C; Guruswamy Pandian, Anu Priya; Gupta, Simran; Betlinski, Jonathan · Med Clin North Am · 2026

review · Level V

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Abstract

Sleep and psychiatric disorders seem to have strong associations, which are bidirectional. Impaired sleep is a risk factor for psychiatric entities, and conversely, psychiatric symptoms tend to aggravate and perpetuate sleep disturbances. Sleep disorders and psychiatric diseases have other common systemic comorbidities as well. Further, there is mounting evidence to suggest that common underlying factors exist for psychiatric and sleep disorders. This article explores the bidirectional nature of sleep and psychiatric comorbidities and also the overlap in the clinical symptomatology. Insomnia seems to be the most common sleep disorder comorbid with psychiatric disorders.

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