Cohort of Patients Suffering From Major Depressive Episode With Evaluation of Sleep, Circadian Rhythms and Psychiatric Disorders

This observational study in France follows patients experiencing a major depressive episode to understand how sleep patterns, body clock rhythms (circadian rhythms), and other psychiatric factors affect the course of depression. Both adults and children are included. **You may be eligible if...** - You are experiencing a current depressive episode meeting standard diagnostic criteria (DSM-5) - You are an adult or child - You have French social security health coverage **You may NOT be eligible if...** - You do not read or understand French - You have a medical condition that prevents you from completing questionnaires - You are unable to give informed consent (e.g., in an emergency or crisis state) Talk to your doctor to see if this trial is right for you.