What should you know about sleep apnea and depression?

Sleep apnea involves repeated narrowing or closure of the upper airway during sleep, which can cause brief awakenings and reduced restorative sleep. Snoring, gasping, dry mouth, morning headache, daytime sleepiness, fatigue, irritability, and difficulty concentrating may follow. Depression can also present with low mood, loss of interest, changes in sleep or appetite, reduced energy, and slowed thinking. Because these patterns overlap, mood symptoms should not be attributed to poor sleep alone, and low mood should not be dismissed as a breathing problem. Insomnia may coexist with sleep apnea and can make the picture harder to recognise.

Tell a clinician about snoring, witnessed pauses, choking awakenings, morning symptoms, mood changes, and any medicines or alcohol that affect sleep. A sleep assessment may include questions, examination, and an overnight breathing test. Depression assessment should cover mood, interest, functioning, safety, and other medical explanations for fatigue. If sleep apnea is confirmed, use the recommended treatment consistently and discuss mask comfort or other barriers rather than stopping alone. Keep a regular sleep schedule, avoid driving when sleepy, and ask for support with activity, therapy, or medication when depression is suspected.

Seek urgent help if depression brings thoughts of suicide, self-harm, or inability to stay safe. Get prompt medical advice for severe daytime sleepiness, falling asleep while driving, chest pain, fainting, or breathing difficulty while awake. Arrange an appointment for persistent low mood, loss of interest, loud snoring, witnessed breathing pauses, morning headaches, or ongoing fatigue; these symptoms deserve assessment even when they seem connected to stress.

Could sleep apnea explain my snoring, awakenings, or daytime sleepiness? Do I need a sleep study? How will you assess depression separately? Could my medicines or alcohol affect breathing or mood? What treatment should I try first, and how will we monitor mood and alertness?