Snoring vs Sleep Apnoea: How to Tell the Difference

Snoring is common — but not always harmless

Almost everyone snores occasionally, and for many people it is little more than a nuisance to a partner. However, snoring can sometimes be a sign of obstructive sleep apnoea (OSA), a condition where breathing repeatedly stops and starts during sleep. Knowing the difference matters, because untreated sleep apnoea can affect both daytime wellbeing and long-term health.

If poor sleep is your main concern, our guide to insomnia explained may also be useful.

What causes snoring?

Snoring happens when air cannot move freely through the nose and throat during sleep, causing the surrounding tissues to vibrate. Common contributors include:

• Sleeping on your back.
• Nasal congestion from a cold or allergies.
• Being overweight, which adds tissue around the throat.
• Alcohol or sedatives, which relax the throat muscles.
• The natural relaxation of tissues with age.

Simple snoring does not usually interrupt breathing or sleep quality in a serious way.

What is obstructive sleep apnoea?

In obstructive sleep apnoea, the airway becomes blocked repeatedly during sleep, causing breathing to pause — sometimes for several seconds — before the body briefly rouses to reopen the airway. This can happen many times an hour, often without the person being aware. The result is fragmented, poor-quality sleep.

The warning signs that point to sleep apnoea

It is hard to tell the two apart from snoring alone. The following features are more suggestive of sleep apnoea, especially if a partner has noticed them:

• Pauses in breathing during sleep, often ending in a gasp, snort or choking sound.
• Loud, irregular snoring rather than a steady rhythm.
• Excessive daytime sleepiness — falling asleep easily during the day.
• Waking unrefreshed despite a full night in bed.
• Morning headaches or a dry mouth on waking.
• Difficulty concentrating, irritability or low mood.
• Waking suddenly feeling short of breath.

If several of these ring true, it is worth speaking to a doctor.

Why sleep apnoea matters

Beyond leaving you tired, untreated obstructive sleep apnoea is linked with higher blood pressure and increased strain on the heart over time. It can also make daytime activities such as driving more dangerous because of drowsiness. This is why it should be assessed rather than ignored.

Self-help for simple snoring

If snoring is the only issue, these steps may help:

• Try sleeping on your side rather than your back.
• Reach or maintain a healthy weight.
• Avoid alcohol close to bedtime.
• Treat nasal congestion.
• Keep a regular sleep routine.

When to see a doctor

See a doctor if you or your partner notice pauses in breathing, gasping or choking during sleep, or if you feel persistently sleepy during the day despite adequate time in bed. A doctor can arrange a sleep assessment and discuss treatments, which for sleep apnoea may include a device that keeps the airway open at night.

Avoid relying on sedatives or alcohol to "sleep through" snoring, as these can worsen apnoea. You can browse general sleep-support options via shop all, but anything pointing towards apnoea needs proper assessment first.

The takeaway

Snoring is usually harmless, but loud, irregular snoring with breathing pauses and daytime sleepiness may signal obstructive sleep apnoea. When in doubt — particularly if a partner has noticed you stop breathing — see a doctor for assessment.

General information only — not medical advice. Always read the patient information leaflet and consult a doctor or pharmacist before starting any medication.