[Circadian rhythm sleep disorders: clinical picture, diagnosis and treatment].

Circadian rhythm sleep disorders (CRSD) may significantly affect daytime functioning due to sleep-wake disturbances.

• CRSD includes seven diagnostic entities divided into endogenous and exogenous categories.
• Patients often report chronic excessive daytime sleepiness and insomnia symptoms.
• The prevalence of CRSD is likely underestimated.
• Diagnosis relies on sleep diaries and actigraphy.
• Effective treatments are available to help realign internal circadian rhythms with external cues.
• Accurate diagnosis is crucial for enhancing quality of life and guiding appropriate treatment.

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