Home Sleep Apnoea Test: Clinician-Reviewed Results from Home
NICE-recommended WatchPAT technology. Algorithm-analysed and reviewed by a UK clinician. Delivered to your door. No GP referral. No waiting list. Results within 2 working days of your test night.
NICE-recommended
WatchPAT device
No GP referral
order directly online
2 working days
results from test night
8 million
UK adults estimated to have OSA
What is a home sleep apnoea test?
A home sleep apnoea test is an overnight assessment you complete in your own bed. Rather than attending a hospital sleep laboratory, you wear a small monitoring device that records your breathing, oxygen levels, pulse rate, snoring, and sleep patterns throughout the night.
The data is then uploaded automatically, scored by the WatchPAT algorithm, and reviewed by a qualified UK clinician. You receive a plain-English report explaining your results and what they mean for your health.
In December 2024, NICE formally recommended WatchPAT home sleep testing for the assessment and diagnosis of obstructive sleep apnoea (OSAHS) in adults aged 16 and over. This means the same device used in NHS sleep services is now available to you at home, with clinical oversight, and without a waiting list.
Obstructive sleep apnoea affects an estimated eight million adults in the UK. Most are unaware they have it. The condition causes repeated partial or complete blockages of the airway during sleep, reducing oxygen levels and fragmenting sleep quality. Left unaddressed, it is associated with high blood pressure, increased cardiovascular risk, daytime fatigue, and impaired concentration.
80%
of moderate-to-severe sleep apnoea cases in the UK are estimated to be undiagnosed, making it one of the most commonly missed conditions in adults.
12-18 months
Average NHS sleep clinic waiting time in most UK regions. A private home sleep apnoea test bypasses this entirely.
90%+
Sensitivity and specificity of the WatchPAT device for moderate-to-severe OSA, compared to gold-standard hospital polysomnography.
Who should take a home sleep apnoea test?
Sleep apnoea is common, frequently missed, and often mistaken for ordinary tiredness. If any of the following apply, a home sleep apnoea test is worth considering.
Symptoms that indicate testing
- Loud or frequent snoring, particularly if it disturbs a partner
- Waking unrefreshed despite what feels like adequate sleep
- Excessive daytime tiredness or falling asleep involuntarily
- Witnessed pauses in breathing or gasping during sleep
- Morning headaches or a consistently dry mouth on waking
- Poor concentration, memory lapses, or low mood with no clear cause
- Frequent waking during the night or an urge to use the toilet
Risk factors that increase likelihood
- Male sex (though women are frequently affected, particularly post-menopause)
- Age over 35
- BMI over 25
- High blood pressure or a history of cardiovascular disease
- Large neck circumference (over 40cm in men, 35cm in women)
- Family history of sleep apnoea
Not sure if you qualify? Final suitability is confirmed during your online screening before purchase. The assessment is suitable for adults aged 16 and over. If you have severe symptoms or urgent concerns, please contact your GP first.
How the ClearSleep home sleep apnoea test works
Five steps from ordering to results. No clinic visit. No GP referral. Completed entirely from home.
Order your assessment online
Choose your tier, complete a brief suitability screen, and place your order. There is no GP referral needed and no waiting list. Your kit is prepared the same working day.
Receive your WatchPAT device
Your device arrives by tracked post within 2 to 3 working days. Everything you need is included: the WatchPAT device, a finger probe, clear setup instructions, and a pre-paid return label.
Complete your overnight test
Wear the WatchPAT device on your wrist and a small sensor on your finger during a normal night's sleep in your own home. No preparation needed beyond a regular bedtime. Data uploads automatically via the WatchPAT app when the test ends.
Clinician review of your data
Your overnight recording is scored by a qualified physiologist using the WatchPAT algorithm, and then reviewed and confirmed by a UK clinician. Every report is reviewed by a qualified human before it is issued.
Results and personalised next steps
Your results are delivered within 2 working days of your test night. You receive a written ClearSleep report that explains your AHI score in plain English and sets out your recommended next steps clearly.
What does the home sleep test measure?
The WatchPAT device captures six clinical parameters overnight, giving your reviewing clinician a comprehensive picture of your sleep health.
AHI Score
The Apnoea-Hypopnoea Index measures how many times per hour your breathing stops or becomes significantly restricted. This is the primary metric used to assess sleep apnoea severity.
Blood Oxygen (SpO2)
Monitors how well your blood is being oxygenated throughout the night. Repeated drops in SpO2 are a key indicator of obstructive events during sleep.
Pulse Rate
Heart rate patterns and variations through the night, including the characteristic surges that follow obstructive breathing events.
Snoring
Intensity and frequency of snoring across the night, including whether snoring is positional and whether it correlates with obstructive events.
Body Position
Detects whether your sleep apnoea is positional, meaning worse when lying on your back. This directly influences treatment recommendations.
Sleep Stages
Identifies time spent in REM and non-REM sleep. Sleep apnoea often worsens during REM sleep, so staging adds important clinical context to your AHI.
WatchPAT uses peripheral arterial tone (PAT) technology to detect obstructive events, validated in over 100 peer-reviewed studies and named by NICE as suitable for diagnosing and assessing severity of OSAHS in adults aged 16 and over.
How accurate is a home sleep apnoea test?
90%+
Sensitivity for moderate-to-severe OSA vs hospital PSG
NICE 2024
Formally recommended for OSA assessment in UK adults
100+
Peer-reviewed clinical studies validating WatchPAT accuracy
The gold-standard for sleep apnoea assessment is polysomnography (PSG), a full overnight study conducted in a hospital sleep laboratory with multiple sensors recording brain activity, eye movement, muscle tone, heart rhythm, breathing effort, and blood oxygen. Hospital PSG studies typically cost between £600 and £1,200 and involve a waiting list of 12 to 18 months in most NHS regions.
For most patients with suspected obstructive sleep apnoea, a well-reviewed home test using WatchPAT technology provides clinically equivalent information to PSG, at a fraction of the cost, completed in your own bed. NICE reviewed the clinical evidence in 2024 and specifically named WatchPAT as suitable for the assessment and diagnosis of OSAHS in adults. The key differentiator with ClearSleep is that every study is reviewed by a qualified clinician, not issued by algorithm alone.
What happens after your home sleep apnoea test?
A clear pathway from results to next steps, managed by our clinical team.
Results call from a clinician
A member of our clinical team contacts you to walk through your results, explain your AHI score, and answer your questions. No generic automated report, no leaving you to interpret data alone.
Written ClearSleep report
You receive a written report in plain English explaining your AHI score, overnight oxygen data, and what your results mean for your health. A formatted clinical appendix is available for your GP or NHS specialist on request.
If signs of sleep apnoea are identified
Your clinician will outline appropriate next steps. This may include CPAP therapy, a mandibular advancement device, lifestyle recommendations, or onward referral depending on your AHI severity and individual circumstances. We do not leave you with a number and no context.
If the test is clear
A clear result is still a valuable finding. Your report will explain your data and, where appropriate, suggest other possible explanations for your symptoms. A negative sleep apnoea result is not a wasted test.
ClearSleep results are accepted by NHS sleep services and can be shared with your GP or NHS specialist. CPAP therapy is available as the next stage for patients with a confirmed sleep apnoea assessment.
Choose your assessment
All three tiers use NICE-recommended WatchPAT technology with clinician-reviewed results. Choose the level of clinical support that suits you.
Essential
Clinician-reviewed report with personalised next-steps letter.
£189
- 1-night WatchPAT test
- Algorithm + clinician review
- AHI score explained in plain English
- Personalised next-steps letter
- 2-day turnaround from test night
- Email support
Plus
Everything in Essential, plus a 30-minute video consultation.
£399
- Everything in Essential
- 30-min video consultation
- Written treatment recommendations
- 2-day turnaround from test night
- Priority support
Complete
Full pathway with extended clinician consultation and 12-month follow-up.
£549
- Everything in Plus
- 60-min clinician consultation
- Personalised treatment pathway planning
- Dedicated case manager
- 12-month follow-up
Final suitability is confirmed during your online screening before purchase. All prices include UK delivery and return postage. View full tier comparison.
Home sleep apnoea test: frequently asked questions
Still have questions? Speak to our clinical team.
Book a free callReady to understand your sleep?
A NICE-recommended WatchPAT home sleep apnoea assessment. Algorithm-analysed, clinician-reviewed. Available across the UK with no GP referral.