John Duffy

Chartered Counselling Psychologist BA, Dip. Psych, MSc

Certified CBT-I (Cognitive Behavioural Therapy for Insomnia) Clinician

Background

John is a counselling psychologist specialising in the treatment of insomnia using Cognitive  Behavioural Therapy for Insomnia (CBT-I). CBT-I is endorsed by major medical and sleep medicine organisations worldwide as the first-line and gold standard treatment for chronic insomnia. 

He provides CBT-I for both standalone insomnia and insomnia occurring alongside other conditions, including obstructive sleep apnoea, depression, anxiety, and chronic pain. John works collaboratively with medical and allied health professionals to support integrated care. 

With over 30 years of clinical experience, he has supported individuals with a broad range of mental health difficulties, bringing a thoughtful, evidence-based, and compassionate approach to treatment. 

Areas of Specialty


  • Cognitive Behavioural Therapy for Insomnia (CBT-I)

  • Sleep Medicine

Memberships


  • Psychological Society of Ireland – Chartered Counselling Psychologist

  • Irish Association of Counselling and Psychotherapy – Associate Member

  • Irish Sleep Society – Full Member

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