My main area of research and clinical practice is insomnia and sleep disorders in adults. I've worked in the field of Behavioural Sleep Medicine (aka sleep psychology) since 2002. I and the founding director of Sleep Matters and J&R Clinical Psychology clinicis in Perth.

After completing my masters and PhD at UWA in 2001, I worked as a postdoctoral research fellow at Oxford University. During this time I worked on a trial of cognitive therapy for Insomnia and projects investigating and measuring insomnia maintaining processes.

Since moving back to Perth I've worked as a clinical psychologist in hospital and private practice settings. I founded Jeffery&Ree clinical psychologists and Sleep Matters, teams who provide sleep and clinical psychology interventions and conduct training in evidence-based insomnia treatment.

My key research interests include:

• Investigating the effectiveness of CBT-Insomnia in various populations including, psychiatric patients, psychotic illness,  and older adults.
• Development and evaluation of a brief sleep intervention in university students.
• Understanding the positive impact of insomnia treatment on mental health disorders and symptoms.
• Investigation variables that affect treatment outcome.
• The relationship between changes in self-reported versus objectively measured sleep on insomnia, quality of life, and mental health outcomes.
• The impact of ACT and mindfulness in combination with CBT-Insomnia.

I am available for PhD supervision, though not as a primary supervisor since my role is predominantly offsite.