Persistent cough at night: what should you know?

A persistent cough at night often reflects irritation that becomes more noticeable when lying down, but ongoing or severe symptoms deserve assessment. Sleep disruption, wheeze, reflux, or nasal drainage can help a clinician understand the pattern.

Lying down can allow mucus from postnasal drip to irritate the throat, while acid reflux may reach the upper throat after an evening meal. Asthma may cause night cough with chest tightness or wheeze. Dry air, dust, smoke, fragrances, and a recent infection can add irritation. Hoarse voice or a throat-clearing habit may accompany repeated coughing.

Keep the sleeping area free of smoke and strong scents, sip water when the throat feels irritated, and notice whether meals, bedding, pets, or room air affect symptoms. Avoid lying down immediately after eating if reflux seems relevant. Keep a brief sleep and symptom record. A GP Consultation can help review nasal symptoms, reflux clues, wheeze, medicines, and the need for examination.

Get emergency help for severe breathing difficulty, blue or grey lips, confusion, fainting, or chest pain. Seek prompt medical advice for coughing blood, a new fever, repeated vomiting, unexplained weight loss, or a cough that is steadily worsening. Arrange a routine assessment when disturbed sleep continues or the cough does not begin to settle.

Ask whether the timing points towards asthma, reflux, nasal drainage, or another cause, and whether your chest, nose, or throat should be examined. Mention your bedtime, meals, sleeping position, home exposures, medicines, wheeze, heartburn, and blocked or runny nose.