Sleep Medicine at Sydney Children's Hospital, Randwick

Our department is using Consultmed to manage referrals.

Please note: the below service is a tertiary/specialist referral clinic only. We only accept referrals from non-GP specialist medical practitioners.

  • For specialist medical practitioners

The Consultmed platform allows you to send e-referrals to us securely. Create an account to get started.

  • For parents and carers

Our contact details and appointment information is further down the page.

Contact details

Phone: (02) 9382 1381 (General and clinic appointment enquiries)

Location: The Sleep Medicine Unit, Level 3, Sydney Children's Hospital, High Street, Randwick NSW 2031

The Sydney Children’s Hospital, Randwick Sleep Medicine Unit is a state-of-the-art facility solely dedicated to the diagnosis and treatment of sleep disorders in children. It is one of only a handful of independent Sleep Medicine Departments in the world dedicated to this specialised area of paediatric medicine.

Using the latest technology, children with suspected and confirmed sleep disorders are admitted to the Sleep Medicine Unit for an overnight sleep study. Considered the 'gold standard' for the diagnosis of conditions such as obstructive sleep apnoea, periodic leg movement disorders or narcolepsy, sleep studies are often used to guide treatment.

What is a sleep study and what does it involve?

A Sleep Study ("polysomnogram") serves many purposes. It is considered the 'gold standard' for the diagnosis of your child's problem, such as obstructive sleep apnoea, periodic leg movement disorder, or narcolepsy. Treatment often depends on the Sleep Study results. There are over 80 different classified sleep disorders.
The sleep study is often used to guide treatment, such as adenotonsillectomy. It is important that a follow-up appointment is made to ensure that the results are communicated and treatment arranged.

A sleep study begins with the painless application of monitoring equipment.

  • Seven leads are attached to previously measured and marked positions on the scalp. These record brain waves indicating the various stages of sleep.
  • Four stickers are placed on the face to monitor eye movement and chin muscle tone.
  • A small plastic tube, with two soft prongs, is placed beneath your child's nose. This will measure nasal airflow.
  • Seven stickers are placed over the chest and abdomen. These monitor the heart rhythm and muscle activity from the diaphragm and abdomen.
  • Two elastic straps are placed around the chest and abdomen. These monitor chest and abdominal movement.
  • A lead with a sticker is placed over each calf, to measure leg movement.

We ask you to come in the early afternoon so that you and your child have time to settle into the Sleep Unit. We apply the stickers and leads shortly after your arrival so that your child has time to get used to wearing them so as to cause the least amount of disruption to your child's normal sleep routine. Following the application, your child is free to move around the ward, to play or to watch TV.

Bedtime is around the usual time for your child, ideally in bed by 8 or 8.30pm to begin the sleep study by 8 or 9pm.

At bedtime further equipment is applied:

  • An oxygen saturation probe is applied to the finger or toe. This measures the oxygen. It consists of a simple red light source and a sensor
  • A carbon dioxide monitor is applied to the skin. This will estimate the carbon dioxide in the blood
  • A small plastic sensor is placed beneath the nasal prongs, to measure airflow through the mouth
  • Most studies will involve sound and video recording.

At bedtime, everything is connected to the computer for the overnight study.

We expect your child will be monitored for about 8 hours overnight. During this time, should your child wake, please do whatever you would normally do to resettle your child. Nursing and technical staff will assist you as required. Your child should be able to continue the usual feeding pattern if they are taking overnight feeds.

Preparing for your visit

The following may assist you in preparing for your visit to the Sleep Unit:

  • Admission time is 2.30pm
  • Discharge time is around 7am
  • Time to set up equipment is 40 minutes to an hour
  • Each room has a phone, the number of which may be given to relatives and friends who may wish to contact you. Please ask them to call prior to your child's bedtime. A phone card is required for outgoing calls. These may be obtained from the cashier's office between 9 AM and 5 PM. (next to the Admissions Office)
  • Each room has an intercom to communicate with the nurses in the monitoring room
  • Between 5AM - 6 AM the night staff will wake your child and remove the equipment
  • Dinner is provided for your child. Please advise us before admission of any dietary requirements. Parent/carers need to provide their own food. There is a cafeteria open until 7pm and several food outlets in the area. You may use the facilities in the kitchen to prepare food.

Things to bring on the day of the sleep study

  • If your child has long hair, a hairbrush and bands are helpful
  • Any regular medication that your child may take
  • Familiar pillows, toys, blankets, or comforters
  • Favourite books and games
  • A good book for you, some nightwear and toiletries
  • A camera. Some children like to have a memento of their study. Printouts of the actual study are usually available on follow-up
  • Comfortable pyjamas or nightie, preferably button-fronted. For babies a 'sleep-suit' is ideal, but not essential. Mittens may be of assistance in preventing equipment removal by little fingers
  • Routine overnight toiletries. Please bring shampoo and conditioner
  • Please remove any nail polish, as this may interfere with monitoring of your child
  • Secure car parking is available and can be accessed from the main campus entrance on Barker Street, Randwick.

One parent or carer must stay with the child overnight. A single sofa bed is provided in the room for one carer. Only 1 parent / carer can be accommodated in the unit, if other family members are travelling with you and require accommodation please refer to our Handy Hints for Your Stay in Hospital brochure

Please do not hesitate in calling the Sleep Medicine Unit if you have any further inquiries regarding a sleep study.

Results of the sleep study must be obtained at a follow-up appointment in the Sleep Clinic two weeks after the study has taken place.

If you are from outside the Sydney area, the results can be obtained from the referring doctor.




A/Prof Arthur Teng

Head of Department and Senior Staff Specialist

Dr Greg Blecher

Senior Staff Specialist 

Dr Brad Martin

Senior Staff Specialist 

Dr Vishal Saddi

Staff Specialist 

Emeritus Prof Colin Sullivan

Honorary Consultant 

Dr Ganesh Thambipillay

Senior Staff Specialist

Dr Natalie Gentin

Honorary Medical Officer

Mr Bruce Williamson

Senior Scientist

Ms Sonia Pithers

Hospital Scientist

See latest research 

Heavy reader? Explore the research team's latest journal articles on Sleep Medicine