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Sleep clinic


Sleep Clinic

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Our sleep unit offers many of the most complex investigations available, from routine/screening to complex diagnostics both in hospital and at home.

All investigations are available to both adults and paediatric patients. The results from these tests are interpreted by a team of highly-skilled clinical physiologists who work hand-in-hand with our sleep consultants to ensure the most accurate diagnosis. Results are usually ready within five days.  


Ambulatory Overnight Oximetry (Respiratory Sleep Study)

This is a simple portable sleep study that can be conducted in the hospital or at home and commonly used to diagnose sleep Apnoea. Your breathing, oxygen levels, chest and abdomen movement will be recorded overnight.


This study will involve you wearing a motion and light sensing Actiwatch around your wrist. The watch will record your activity continuously for at least 14 days to enable us to assess your 24 hour sleep-wake cycle.

Nocturnal Polysomnography (PSG) in hospital or at home

This investigation is considered by many as the gold standard in sleep diagnostics. During a PSG you will be filmed as well as having your brain activity, breathing, oxygen levels, limb movement, muscle tone and eye movements monitored. We will use the information to look for sleep disorders such as sleep apnoea, snoring, periodic limb movement disorder, parasomnias (sleep walking/talking) and other uncommon sleep conditions. This test can be conducted in one of our specialist sleep study rooms or at home if appropriate.

Nocturnal polysomnography with positive airway pressure (PAP) titration (split night)

If you already use continuous positive airwave pressue (CPAP) or non-invasive ventilation (NIV) device or if it’s very likely you require therapy, initial and annual PAP titration study is very important. We will monitor you overnight on your device and make sure that the device is supporting you correctly and configured to optimum settings. This is done the same way as a standard polysomnography.  

Polysomnography and multiple latency sleep test

This study requires an overnight stay in the hospital to initially conduct a standard PSG and is followed by a daytime sleep study. You will be given up to five 20 minute nap opportunities throughout the day during which you will be filmed and have your brain activity, oxygen levels, muscle tone and eye movements monitored. We will then measure if you fall asleep in each nap and, if so, whether you go into rapid eye movement (REM) sleep or not.

Respiratory study with CO2 monitoring

This test records your oxygen and carbon dioxide levels throughout the night to see if they are in normal ranges. This can be used in conjunction with CPAP or NIV as a way of optimising therapy settings. 

Why choose Bupa Cromwell Hospital for sleep treatment?

We offer rapid access to effective treatment of sleep disorders working with a wide range of experts in a multi-disciplinary team which includes respiratory and sleep physiologists, as well as neurology and ENT consultants depending on your symptoms and study results.  

How do I pay for treatment?

We welcome both insured and self-pay patients as well as company and embassy sponsored patients. Once we have received a referral from your referring GP or specialist physician, a member of our clinical team will contact you to discuss a convenient time to attend the hospital for treatment.

Contact us at Bupa Cromwell Hospital IPC
Call Bupa Cromwell Hospital

Call the Sleep Clinic on +44 (0)20 7460 5796

We can take your call between 9am-8pm Monday to Friday.

Email Bupa Cromwell Hospital

Email the Sleep Clinic

Send us an email enquiry and we will get back to you.

Bupa Cromwell Hospital