Appointments
Sleep disorders centre
How to get an appointment
Your GP or another health professional can refer you.
You may have to wait up to 10 months for an appointment.
We offer appointments in the order we accepts referrals.
Changing or cancelling your appointment
Phone: 020 7188 8340, option 1
- New outpatient appointments: [email protected]
- Follow up appointments: [email protected]
Please let us know as soon as possible.
We may discharge you back to the person who referred you if you do not come to your appointment.
Before your appointment
Please sign up to MyChart before your appointment. We may send you links to complete any pre-appointment details and questionnaires. Please complete this before your appointment.
Please bring:
- a list of any medicines you're taking
- any drug allergies you may have
- copies of any correspondence from consultations with doctors in other hospitals, if available
During your appointment
Your appointment may be:
Face-to-face appointments
Please arrive no more than 20 minutes before your appointment
Our face-to-face appointments page has more information about what to expect.
Telephone and video appointments
If you have a phone or video appointment, we'll aim to call you at the appointment time. We may call up to 30 minutes before or after. Please have your phone close to you during this time. You may receive a call from us that shows as ‘No Caller ID’. Please be aware of this.
Your first appointment will last 20 to 30 minutes. It may involve:
- taking a history of your sleep complaint
- a brief examination
- taking your weight and blood pressure
- completing a questionnaire to help us judge your degree of daytime sleepiness
After your appointment
Your clinician or technologist will explain what follow-up visits or investigations are needed.
Further investigations
This device helps check for sleep apnoea and other breathing problems while you sleep at home in your own bed. It is usually the first, and sometimes the only, test if there are concerns about your breathing during sleep. It is not a full sleep study, but in most cases, 1 night with this device is enough to show if there is a breathing problem or not.
This is a special test that tracks how much sleep you get and when. You will have this test over 1 to 2 weeks.
This is an overnight sleep study done in hospital. You will stay at the sleep disorders centre. During the study, we monitor your:
- breathing
- heart rate
- movement
- brain activity
We will also record you while you are sleeping.
This test measures how sleepy you are. It is usually done the morning after a polysomnography, if needed.
This test measures how alert you are, for example to check if you are fit to drive. It is usually done the morning after a polysomnography, if needed.
If you need a follow up appointment, we will send you a follow up appointment digital letter.
If you have been referred for an overnight sleep study, this will usually take place within 6 weeks of your appointment. We will contact you to agree an overnight sleep study date.
Following your appointment, we will send a letter to you and your GP with advice and follow-up plan we discussed during your appointment.
Last updated: December 2025
