Frequently Asked Questions

Excessive Sleepiness

What are the symptoms of Idiopathic Hypersomnia? Back to top

Patients with IH do not experience cataplexy, sleep paralysis or hypnagogic hallucinations. They wake in the morning feeling tired and drowsy, and it can take several hours before feeling alert. They feel extremely sleepy and the need to take naps during the day is almost overwhelming. It is co...

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What are some of the symptoms of Narcolepsy? Back to top

Symptoms that may occur in narcolepsy (but not always):

  • Cataplexy - a sudden loss of muscle tone, often triggered by laughing, crying or strong emotions.
  • Sleep paralysis - this usually occurs when waking up in the morning and lasts usually for 1 minute or less. It can be a fr...

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What disorders causing excessive sleepiness? Back to top

Narcolepsy and idiopathic hypersomnia (IH) are relatively uncommon sleep disorders. They are similar to each other - both are characterised by excessive daytime sleepiness. Distinguishing the two conditions can be quite difficult and requires the expertise of a sleep physician.

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Dr Adrian Chazan


Dr Chazan is a Respiratory & Sleep Physician, and General Physician. Born in Melbourne, he undertook his basic medical training at the University of Melbourne. With a passion for sleep and breathing, he trained at world-renowned centres of excellence in Melbourne and Sydney, including Westmead Hospital, the Alfred Hospital and Monash Medical Centre. Adrian has been involved in research activities in the fields of sleep apnoea, chronic obstructive pulmonary disease and exercise physiology.

Adrian utilises the latest findings in sleep research as well as the emerging technologies in diagnosis and treatment. He takes a patient-centered approach to medical care with the aim of empowering his patients to achieve better sleep and optimal long-term health outcomes.

Dr Moayed Alawami


Dr Alawami earned his medical degree from The University of Auckland, embarking on a diverse medical journey across New Zealand’s two islands during his foundational physician training. Driven by a passion for solving medical puzzles, he pursued advanced training in general medicine with a subspecialty focus on respiratory medicine.

In 2018, Dr Alawami transitioned to Queensland, where he worked in one of the largest hospitals, the Royal Brisbane and Women’s Hospital. At the onset of the Covid-19 pandemic, he served as a registrar in a dedicated Covid Unit. Seeking to enhance his skills, he relocated to Adelaide to specialize in bronchoscopy, focusing on linear and radial EBUS to advance the diagnosis of patients with lung tumours.

Currently serving as a Sleep Medicine Fellow at Western Health and now at The Centre for Sleep and Pulmonary Medicine, he is involved in teaching and training of medical students and basic physician trainees.

Dr Alawami’s achievements include receiving a Professional Development Grant from RACP Queensland. Notably, he was nominated for Registrar of the Year at RBWH. Dr Alawami holds a master’s degree in Biostatistics from The University of Queensland and published over 10 scientific articles as a trainee.

Dr Alawami invites referrals related to respiratory and sleep disorders medicine, addressing concerns such as cough, asthma, COPD, lung nodules, dyspnoea, sleep apnoea and other sleep-related problems, providing comprehensive investigation and expert care.

Dr Alawami speaks both English and Arabic.

Consulting in Werribee weekly each Wednesday