Health condition
Obstructive sleep apnoea
Obstructive sleep apnoea - repeated airway collapse in sleep causing snoring, gasping pauses and unrefreshing nights - is common, underdiagnosed, and treatable, with CPAP transforming daytime life for most who use it.
Why trust this guide
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Editorial team
Written by our editorial team from the UK sources listed on each page.
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Sourced from guidance
Checked against current NHS and UK specialist society guidance at the time of review.
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Current for 2026
Reviewed on 2026-09-27 with the next review scheduled for 2027-09-27.
Key facts
The essentials at a glance.
The symptoms to recognise, when to seek help, which specialist to see, and what treatment usually involves.
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Loud snoring, witnessed breathing pauses, choking arousals and daytime sleepiness are the classic set
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Untreated apnoea raises blood pressure and the risk of heart disease, stroke and accidents
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Diagnosis is by a simple home sleep study in most cases
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Excessive sleepiness must be declared to the DVLA and stops driving until treated
Understanding the condition
What it is and what happens next.
What causes it, how it is diagnosed, and the treatment routes available in the UK.
What it is and how it feels
In OSA the throat collapses repeatedly during sleep - dozens of times an hour in severe cases - each obstruction ending in a brief arousal that fragments sleep unnoticed. The result is a day built on broken nights: morning headaches, irresistible dozing, irritability and poor concentration, while blood pressure climbs with every surge of nocturnal adrenaline. Weight is the biggest risk factor, but jaw shape and airway anatomy mean slim people are not exempt.
Diagnosis and treatment routes
A home sleep study counts breathing events and grades severity, guiding treatment: CPAP - gently pressurised air through a mask that splints the airway open - is first-line for moderate and severe disease and improves symptoms within days when the mask fit is right; mandibular advancement devices suit mild-to-moderate cases and CPAP-intolerant patients; and weight loss, alcohol reduction and positional therapy help everyone. Sleepiness affecting driving legally must be reported to the DVLA, with driving resumed once treatment controls it. In many parts of the UK, routine NHS referrals for this kind of problem currently take 20-45+ weeks, whereas an initial appointment with a private consultant is typically available within around two weeks.
Seeing a specialist
Who to see, and how quickly you can be seen.
The specialist for this condition is usually a consultant ENT surgeon. Your GP can refer you on the NHS, or you can arrange a private consultation directly.
A quiet reminder
This guide is for information, not medical advice.
Your GP knows your history and can tell you which parts apply to you. If in doubt, see them - and seek urgent care for any of the emergency symptoms described above.
Frequently asked
Common questions about Obstructive sleep apnoea.
Quick, plain-English answers to what people ask us most.
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What is obstructive sleep apnoea?
Obstructive sleep apnoea is a sleep-related condition that disrupts normal sleep patterns, sleep quality, or daytime alertness. It's more common than many people realise and is usually assessable through a combination of history, sleep diaries and, where needed, specialist sleep studies.
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Why does obstructive sleep apnoea happen?
Causes can include lifestyle and environmental factors, an underlying physical or neurological condition, other health conditions, or in some cases no clear single cause at all. A sleep specialist can help identify contributing factors.
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How would I know if I have obstructive sleep apnoea?
Common features include difficulty falling or staying asleep, unusual behaviours or sensations during sleep, excessive daytime sleepiness, or a bed partner noticing unusual signs. Keeping a sleep diary can help your doctor assess the pattern.
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How worried should I be about obstructive sleep apnoea?
Left unmanaged, it can affect concentration, mood, safety (for example when driving) and long-term health, but it is generally very manageable once properly diagnosed and treated.
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Is obstructive sleep apnoea something that runs in families?
In most cases this isn't primarily hereditary, though family history and shared lifestyle or environmental factors can sometimes play a role in overall risk. If you're concerned about a family pattern, mention it to your doctor so they can consider it in your assessment.
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Is there a cure for obstructive sleep apnoea?
Many sleep conditions can be substantially improved or resolved with the right treatment approach, whether that's lifestyle changes, devices, therapy or medical treatment, once the underlying cause is identified.
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How is obstructive sleep apnoea treated?
Treatment depends on the underlying cause and can include lifestyle changes, behavioural approaches, devices, or medical/surgical treatment where appropriate, guided by sleep study findings.
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What is the long-term outlook for obstructive sleep apnoea?
Improvement timelines vary by treatment type — some measures help within days to weeks, while others (such as lifestyle changes) may take longer to show their full benefit.
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When should specialist referral be considered for obstructive sleep apnoea?
A sleep specialist referral is worth considering if symptoms persist despite simple lifestyle measures, or if there are signs suggesting a condition like sleep apnoea that needs formal testing.
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When should I see a doctor about obstructive sleep apnoea, and how quickly can I be seen privately?
See a doctor if symptoms are persistent, worsening, or affecting your daily life — earlier assessment generally leads to better management. NHS routine referrals for this kind of concern often take 20–45 weeks or longer depending on the area, while a private consultant can typically see you within about 2 weeks, with faster access to scans and specialist opinion.