When is sleep study recommended for obstructive sleep apnoea?

Obstructive sleep apnoea occurs when the upper airway narrows or closes repeatedly during sleep, disrupting breathing and sleep quality. A sleep study tracks airflow, breathing effort, oxygen, heart rate and sometimes brain activity and body position. A clinician may recommend it for loud habitual snoring, witnessed pauses, gasping, morning headaches, dry mouth, poor concentration or unexplained daytime sleepiness. The diagnosis depends on the recorded pattern, not on snoring alone.

Tell your clinician about night-time observations and daytime effects, including any drowsiness during driving. Share your medicines, alcohol use, sleep schedule and relevant medical history. Ask whether a home test is suitable or whether you need monitored testing in a sleep centre. Read about [Obstructive Sleep Apnoea](/conditions/obstructive-sleep-apnoea/) and [Sleep Study](/treatments/diagnostics-and-screening/sleep-study/) so you know what the assessment is designed to answer.

Arrange prompt review when someone repeatedly observes breathing pauses, you wake choking, or daytime sleepiness affects work, driving or other safety-sensitive tasks. Seek urgent help for severe breathing difficulty, chest pain or confusion. Until assessed, avoid driving when drowsy and tell household members what symptoms to watch for.

Ask which symptoms support testing, whether home or centre-based monitoring is appropriate, how to prepare, when results will be explained, and what treatment options match the findings.