Combining Light Therapy and CPAP in Depression

This study is testing whether combining light therapy (sitting in front of a bright light box each morning) with CPAP treatment improves depression in people who have both major depression and obstructive sleep apnea (OSA). Both conditions are often linked, and treating them together may produce better results. **You may be eligible if...** - You are an adult being treated at the Michel Jouvet sleep unit in Bron, France - You have a diagnosis of major depressive episode (MADRS score ≥ 15) - You have been diagnosed with sleep apnea requiring CPAP treatment **You may NOT be eligible if...** - You are pregnant or breastfeeding - You have eye conditions that make light therapy risky (such as retinitis pigmentosa, macular degeneration, or recent eye surgery) - You have severe nasal blockage or refuse to use CPAP or light therapy - You have unstable psychiatric conditions or are at high risk of suicide Talk to your doctor to see if this trial is right for you.