Diagnostic Sleep Study (Polysomnography) Brisbane | NBST

Overnight Sleep Testing in Clayfield & North Lakes

A diagnostic polysomnography (PSG) is the most comprehensive sleep study available and is considered the gold standard for assessing sleep disorders. At North Brisbane Sleep & Thoracic (NBST), we perform overnight PSGs in private, comfortable rooms at our North Lakes clinic.

Most sleep studies are bulk billed for eligible patients - check your eligibility here.

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What Is a Diagnostic Polysomnogram?

A PSG records a wide range of physiological signals as you sleep. It allows our sleep specialists to accurately diagnose sleep disorders including:

  • Obstructive Sleep Apnoea (OSA)

  • Insomnia

  • Periodic limb movement disorder (PLMD)

  • REM behaviour disorder

  • Narcolepsy and hypersomnia

This test provides the most detailed sleep analysis available.

Sleep Studies | North Brisbane Sleep & Thoracic | North Lakes & Clayfield | Brisbane

What Happens During a PSG?

  • Arrive at the sleep clinic (Clayfield or North Lakes) by 8pm

  • A trained technician will place sensors on your scalp, temples, chest, legs, and finger

  • These monitor your brain waves, heart rate, breathing, oxygen levels, movement, and more

  • The room is fitted with audio and video monitoring (for additional clinical insights)

  • Staff monitor your sleep throughout the night

You’ll be woken around 5am and are free to leave after the study.

What We Measure

During the study, we collect high-quality clinical data including:

  • Brain and eye activity (EEG, EOG)

  • Heart rhythm (ECG)

  • Oxygen saturation (SpO2)

  • Respiratory effort and airflow

  • Leg and body movements

  • Snoring and audio cues

This comprehensive data helps our sleep specialists determine the presence and severity of any sleep disorder.

Bulk billed sleep studies available

You may be eligible for a bulk billed sleep study.

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What Happens After the Study?

  • Your results are analysed by a specialist sleep physician

  • A report is shared with your GP or referrer

  • Treatment recommendations may include CPAP therapy, behavioural strategies, or further investigation

>> Take the Sleep Health Survey to check if you’re eligible for a bulk-billed study