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Is Snoring a Sign of Sleep Apnoea?

By Massner Team October 03, 2026 · 12 min read

Most snoring is just noise. It is irritating for whoever shares the room, but on its own it does not mean anything is wrong with your breathing. Some snoring, though, is the audible part of obstructive sleep apnoea, a condition in which the airway repeatedly narrows or closes during sleep and breathing stops and starts.

From the other side of the bed the two can sound much the same, so it is easy to mistake one for the other. The difference lies in what happens between the snores, and in how you feel the next day.

This guide covers the signs that separate the two, the questionnaires a GP may use, how testing works on the NHS, and what treatment usually involves.

Simple Snoring and Sleep Apnoea Are Not the Same Thing

Snoring is the sound of soft tissue in the throat vibrating as air squeezes past it. The airway is narrowed, but it stays open and air keeps moving. When that is all that is happening, doctors call it simple or primary snoring.

In obstructive sleep apnoea the narrowing goes further. The NICE guideline describes a condition in which the upper airway narrows or closes during sleep when the muscles relax, causing under-breathing (hypopnoea) or stopped breathing (apnoea). The person then wakes or lightens their sleep to end each episode, which breaks up the night and can leave them excessively sleepy.

So the useful question is not how loud the snoring is, but whether the breathing keeps going. Loud snoring is on the NHS list of apnoea symptoms, but so are breathing that stops and starts, gasping, snorting or choking noises, and waking up a lot. Snoring by itself does not tell you which group you are in.

The two are linked, though. In a US study that gave overnight sleep tests to a random sample of 602 working adults aged 30 to 60, habitual snorers of both sexes tended to have more moderate or worse sleep disordered breathing (15 or more events an hour of sleep). Male sex and obesity were also strongly associated with it.

The Clue That Matters Most: Pauses Someone Else Can See

You cannot watch yourself sleep, so you may have no idea it is happening. The NHS points out that it can be hard to tell if you have sleep apnoea, and suggests asking someone to stay with you while you sleep so they can check for the symptoms.

What the observer is listening for is not volume. It is a silence where a breath should be, followed by a snort, gasp or choking sound as breathing restarts. NICE lists both witnessed apnoeas and choking during sleep among the features that should prompt an assessment.

Watch more than one night. One night can be unusual. A few nights give a fairer picture, and it helps to note whether you had been drinking, since the NHS lists alcohol among the things linked to sleep apnoea. Jot down roughly how often the pauses happen and whether they come in runs.

Record it. A voice recording on a phone, left running by the bed, lets a GP hear the pattern rather than rely on a description given half asleep.

Bring the witness. The NHS says that if someone else has seen you have the symptoms, it can help to bring them with you to the GP.

Once your partner has done the observing, it is reasonable for them to protect their own sleep while you wait for an appointment. Soft silicone ear plugs help with the noise, though they also mean the observer stops observing, so do the watching first.

Other Signs That Point Beyond Simple Snoring

Pauses are the headline sign, but the NICE guideline for over 16s tells clinicians to take a sleep history and assess for apnoea when someone has 2 or more of the following:

snoring
witnessed apnoeas
unrefreshing sleep
waking headaches
unexplained excessive sleepiness, tiredness or fatigue
nocturia (waking from sleep to urinate)
choking during sleep
sleep fragmentation or insomnia
cognitive dysfunction or memory impairment

Snoring is on that list, so a snorer needs only one more item to meet the threshold for assessment. Headaches on waking have several possible causes besides apnoea, which we cover in can snoring cause morning headaches.

NICE also asks clinicians to be aware that apnoea is more common in people with certain conditions, including obesity, treatment resistant high blood pressure, type 2 diabetes, atrial fibrillation and other heart rhythm problems, previous stroke or mini stroke, chronic heart failure and an underactive thyroid. The heart side of this is a big subject of its own, set out in is snoring bad for your heart.

The NHS adds the everyday risk factors: obesity, a large neck, getting older, other family members with sleep apnoea, drinking alcohol, smoking, large tonsils or adenoids, sleeping on your back, and chronic obstructive pulmonary disease (COPD).

Two Questionnaires a GP May Use

The first step is usually a conversation about your sleep and a questionnaire or two. NICE recommends using the Epworth Sleepiness Scale in the preliminary assessment of sleepiness, and considering the STOP-Bang Questionnaire alongside it.

STOP-Bang

STOP-Bang has 8 items. The first 4 are the yes or no questions of the original STOP questionnaire: do you Snore, are you Tired during the day, has anyone Observed you stop breathing, and do you have high blood Pressure. The other 4 are Body mass index, Age, Neck size and Gender.

It was developed in patients attending clinics before surgery. The STOP questions were given to 2,467 patients, and 177 in the validation group went on to have a full overnight sleep study. The 4 questions alone picked up 65.6 percent of people with an AHI (breathing events per hour) over 5, 74.3 percent of those over 15 and 79.5 percent of those over 30. Adding body mass index, age, neck size and gender raised those figures to 83.6, 92.9 and 100 percent.

Those numbers describe sensitivity, meaning how many real cases the questionnaire catches, and the authors noted it was most sensitive for moderate to severe apnoea. A high score is a reason to be tested, not a diagnosis.

The Epworth Sleepiness Scale

The Epworth asks how likely you are to doze off in 8 everyday situations, such as lying down to rest in the afternoon or sitting and talking to someone, with each scored from 0 to 3. The total runs from 0 to 24, and it takes no more than 2 or 3 minutes to answer.

According to the scale's official website, scores of 0 to 10 are in the normal range and 11 to 24 represent increasing levels of excessive daytime sleepiness: 11 to 12 mild, 13 to 15 moderate and 16 to 24 severe. Australian adults with no sign of a chronic sleep disorder, and who did not snore frequently, averaged 4.6.

Why neither one settles it

NICE is explicit that the Epworth should not be used alone to decide whether someone needs referral, because not all people with obstructive sleep apnoea have excessive sleepiness. A low Epworth score with witnessed pauses still deserves a GP appointment.

Why So Much Apnoea Goes Unnoticed

The same US study shows how easily apnoea hides. Overnight testing found at least mild sleep disordered breathing (5 or more events an hour) in 24 percent of the men and 9 percent of the women. Yet the researchers estimated that only 4 percent of middle-aged working men and 2 percent of women met the minimal criteria for sleep apnoea syndrome, which also requires daytime sleepiness.

On those estimates, most of the people whose breathing was disrupted at night did not have marked daytime sleepiness, so they had little reason to suspect anything. The authors concluded that undiagnosed sleep disordered breathing was common among men and much more common among women than previously suspected.

Tiredness has other explanations too. The Epworth website notes that sleep disordered breathing should not be assumed to be the only thing raising scores, and that depression is also important. Apnoea can be blamed on a busy life, and a busy life can be mistaken for apnoea. Separating the two is what the sleep test is for.

The NHS Route, From GP to Sleep Study

The NHS advises seeing a GP if your breathing stops and starts while you sleep, if you make gasping, snorting or choking noises in your sleep, or if you always feel very tired during the day. It also warns that sleep apnoea can be serious if it is not diagnosed and treated.

If the GP suspects apnoea, they may refer you to a specialist sleep clinic. NICE recommends that the referral letter includes your questionnaire scores, how sleepiness affects you, any other health conditions, and any risks linked to your job.

Within the sleep service, NICE says some people should be prioritised for rapid assessment, including those who drive for a living, those whose jobs depend on staying alert for safety, people with unstable heart disease such as poorly controlled heart rhythm problems or treatment resistant high blood pressure, pregnant women, and people being assessed before major surgery.

Driving. If you are nodding off at the wheel, tell your GP plainly. The DVLA position on sleep apnoea is summarised in the FAQs below.

What a Home Sleep Test Involves

Most people can do the test at home. The NHS says the clinic may give you devices that check things like your breathing and heartbeat while you sleep, and that you can usually wear these at home, though sometimes you may need to stay in the clinic.

NICE sets out the order of tests. The first offer is home respiratory polygraphy, an overnight recording of your breathing, with home oximetry, which tracks the oxygen level in your blood, as an option where polygraphy is hard to get. If a result is negative but symptoms continue, a fuller test such as polysomnography should be considered.

The result is usually given as an apnoea hypopnoea index (AHI), the number of breathing events per hour of sleep. The NHS bands are:

5 to 14: mild
15 to 30: moderate
over 30: severe

What Treatment Usually Looks Like

NICE advises discussing lifestyle changes with everyone diagnosed, at any severity: support with losing weight, stopping smoking, cutting down on alcohol and improving sleep habits. The NHS adds sleeping on your side and avoiding sleeping pills unless a doctor recommends them, as they can make apnoea worse.

Mild apnoea without daytime symptoms. NICE says treatment is not usually needed, and lifestyle changes can help stop it getting worse.

Mild apnoea that affects your days. NICE says CPAP should be offered alongside lifestyle advice if lifestyle changes alone have not worked, are not appropriate, or if one of the priority factors above applies.

Moderate or severe apnoea. NICE recommends CPAP plus lifestyle advice. CPAP is a machine that gently pumps air into a mask worn over the nose, or nose and mouth, while you sleep. The NHS provides it free if you need it, and says it works best when used every night.

If CPAP does not suit you. NICE suggests a customised or semi-customised mandibular advancement splint for adults with healthy teeth and gums who cannot tolerate CPAP or decline it. We look at the evidence for these in do anti-snoring mouthpieces work.

Other options. Positional devices for mild or moderate apnoea that is linked to sleeping position, where other treatments are unsuitable (NICE notes they are unlikely to work in severe apnoea), tonsil removal for people with large obstructive tonsils and a BMI under 35, mouth and facial muscle exercises, and hypoglossal nerve stimulation, a device that sends small electrical signals to the nerve that controls the tongue.

Simple snoring aids are a different matter. Whether nasal strips have any role once apnoea is diagnosed is covered in our post on whether nasal strips help with sleep apnoea; the short version is that they are no substitute for assessment.

Frequently Asked Questions (FAQs)

Does loud snoring mean I have sleep apnoea?

Not by itself. Loud snoring is a symptom of sleep apnoea, but it is also possible to snore loudly with an airway that stays open, which is simple snoring. What points towards apnoea is snoring combined with other signs: breathing that stops and starts, gasping or choking noises, unrefreshing sleep, or heavy daytime tiredness. NICE advises assessment when someone has 2 or more such features.

Can you have sleep apnoea without snoring?

Snoring is one feature on the NICE list, not a requirement. The guideline tells clinicians to assess anyone with 2 or more features, such as witnessed pauses in breathing together with daytime sleepiness or waking headaches, whether or not they snore. If someone has seen you stop breathing, see a GP even if you are a quiet sleeper.

What is a normal Epworth score?

The official Epworth website gives 0 to 10 as the normal range. Scores of 11 to 12 suggest mild excessive daytime sleepiness, 13 to 15 moderate and 16 to 24 severe. A normal score does not rule out apnoea, because NICE notes that not everyone with the condition is excessively sleepy.

Is a home sleep test good enough?

For most people it is the starting point. NICE recommends offering home respiratory polygraphy to people with suspected obstructive sleep apnoea, with home oximetry as an option where access is limited. If a home test comes back negative but symptoms continue, the guideline says a fuller test such as polysomnography should be considered.

Do I need to tell the DVLA if I snore?

The NHS guidance concerns sleep apnoea rather than snoring. It says you may need to tell the DVLA about sleep apnoea, and that if sleep apnoea with excessive sleepiness has been confirmed, you must not drive until symptoms such as feeling very tired are under control. Check the current rules on GOV.UK and ask your GP.

What happens if the test shows mild sleep apnoea?

If it is not affecting your daytime life, NICE says treatment is not usually needed and lifestyle changes such as losing weight, stopping smoking and drinking less can stop it worsening. If mild apnoea does affect your days, CPAP can be offered, with a mandibular advancement splint as an alternative for those who cannot use it.

Sources

This article is general information, not medical advice. If someone has seen you stop breathing in your sleep, or you are struggling to stay awake during the day, speak to your GP, and do not drive while you feel dangerously sleepy.