What should you know about snoring through the nose with your mouth closed?

The soft tissues around the nasal passages and throat can vibrate even when the lips remain together. Swelling from Allergic Rhinitis, persistent inflammation from Chronic Sinusitis, a narrow nasal passage or the position of the tongue may increase resistance to airflow. Sleeping on your back can make the upper airway narrower, and Obesity can add pressure around it.

Closed-mouth snoring is not a reliable way to rule in or rule out Obstructive Sleep Apnoea. Pay attention to breathing pauses, sudden snorts, gasping, frequent waking and unrefreshing sleep rather than judging the condition by mouth position.

Ask a partner to describe the sound and whether breathing stops, or use a brief audio record if safe and appropriate. Note nasal blockage, medicines, alcohol near bedtime and sleep position. Side sleeping may reduce airway collapse for some people. Manage known nasal allergy with professional advice and avoid forcing the mouth shut with tape or a strap, particularly when the nose is congested. If weight is affecting breathing, discuss a Weight Management Programme with a clinician.

Seek medical advice for regular snoring with witnessed pauses, choking, morning headaches, high daytime sleepiness or difficulty staying alert. Arrange review for ongoing one-sided nasal blockage, repeated sinus symptoms or a recent change in snoring. Urgent help is needed for severe breathing difficulty while awake or a bluish appearance.

Could the noise be coming from my nose, soft palate or throat? Do my sleep symptoms warrant testing for Obstructive Sleep Apnoea? How should I manage nasal blockage safely?