Snoring: When It Is Normal and When to Worry

Most adults snore at some point, and most snoring is noise rather than disease. The pattern worth acting on is snoring with pauses, gasping or choking, because that points toward obstructive sleep apnoea. This page explains what causes the sound, which signs justify a doctor and what you can change tonight. It is general information, not medical advice.

What makes the noise

When you fall asleep, the muscles that hold the throat open relax. The airway narrows, the airflow speeds up, and the soft palate, uvula and throat walls start to vibrate. The narrower the airway, the louder and more irregular the sound, which is why the same person snores lightly on their side and heavily on their back.

Common contributors are nasal blockage from a cold or allergies, weight gain around the neck, alcohol within a few hours of bed, sedating medicines and sleeping flat on the back. Tissue around the neck narrows the airway further, so snoring often gets worse over a few years rather than overnight.

Snoring that is usually harmless

Steady, rhythmic snoring on the in-breath, with no pauses and no daytime sleepiness, is the pattern that rarely needs treatment. It often stops with a change of position. It is still worth mentioning at a check-up if it is new, if it arrived with weight gain, or if it keeps a partner awake.

Snoring that only appears after a few drinks, or only with a blocked nose, carries lower risk. Treat the cause, sleep on your side, and the volume usually drops.

Volume is a poor guide on its own. A quiet snorer with pauses is more concerning than a loud one without them, which is why a partner's description is more useful than a phone recording.

Light positional snoring is worth a two-week trial of side sleeping before anything else. Record the sound on a phone for a few nights and compare, because the change is hard to judge by ear from inside the room.

Signs that need a sleep assessment

Sleep apnoea is common, serious and treatable. The signs below are the ones clinicians ask about, and any single one is enough reason to book an appointment.

• Witnessed pauses in breathing - A partner sees breathing stop for ten seconds or more, then a snort or gasp as it restarts.
• Gasping or choking in sleep - Brief wakings that restart the airway; people almost never remember them in the morning.
• Morning headache and dry mouth - Both are common after repeated drops in blood oxygen during the night.
• Daytime sleepiness that never lifts - Falling asleep in meetings, in the car or during a film even after eight hours in bed.
• Blood pressure that stays high - Apnoea keeps the overnight dip in blood pressure shallow and is a recognised cause of resistant hypertension.
• Getting up to pass urine at night - Repeated trips often track breathing events rather than bladder capacity.
• Falling asleep at the wheel - Treat this one as urgent and stop driving until a doctor has assessed you.
• Collar size or neck weight increase - Extra tissue around the neck narrows the airway and is one of the strongest screening markers.

What an assessment involves

A doctor will ask about sleep, snoring, daytime sleepiness and current medicines, then likely arrange a home sleep study or an overnight recording. The study counts pauses in breathing per hour, and a score above a set threshold supports a diagnosis of apnoea.

Treatment depends on severity and cause. Common options are a CPAP machine that holds the airway open with air pressure, a mouthpiece that moves the lower jaw forward, side-sleeping aids for people whose apnoea only appears on their back, weight management, and surgery in specific cases. Mild snoring without apnoea is sometimes managed with nasal or dental devices, and the evidence for over-the-counter strips is weak.

Take a partner to the appointment if you can. Their account of how often breathing stops, and how loud the restart sounds, tells the clinician more than any single night of home recording.

What can change tonight

Sleep on your side. A tennis ball sewn into the back of a t-shirt or a position alarm band is crude, but it works for people who only snore on their back. Avoid alcohol within three to four hours of bed, because it relaxes the throat muscles and deepens any drops in oxygen.

Treat a blocked nose with saline or whatever your doctor suggests, since mouth breathing magnifies the noise. Raise the head end of the mattress slightly if you have reflux, and keep the bedroom cool. None of this replaces an assessment when pauses are happening, and never stop a sedating medicine or change a CPAP setting on your own.

Piling up pillows bends the neck and can narrow the airway, so raising the mattress under the head end works better than adding pillows.

Nasal strips and dilators help a minority of people with a narrow nasal valve, and they do nothing for snoring that starts in the throat, which is where most of it comes from.

Children who snore

Regular snoring in children is not as harmless as it sounds. Enlarged tonsils and adenoids are the usual cause, and children who snore most nights, mouth breathe or wake unrefreshed often have disturbed sleep that shows up as daytime behaviour problems. A paediatrician or ear, nose and throat referral settles whether treatment is needed. Watch for mouth breathing during the day and for daytime sleepiness, since both raise the odds that treatment will help.