What are the clinical benefits of cognitive behavioural therapy for insomnia

Guideline-aligned answer with reasoning, red flags and references. Clinically reviewed by Dr Kola Tytler MBBS CertHE MBA MSt MRCGP.

Posted: 30 July 2026Updated: 30 July 2026 Guideline-Aligned (High Confidence) Clinically Reviewed

CBT-I is the preferred first-line treatment for adults with chronic insomnia because its benefits persist after treatment ends, whereas pharmacological therapy should be avoided for long-term management.

  • Durable benefit: CBT-I produces benefits that persist after completion, unlike medication.
  • Appropriate across adulthood: CBT-I is recommended for chronic insomnia in adults of any age, including via the NICE-recommended digital CBT-I programme Sleepio.
  • Avoids long-term hypnotic exposure: NICE advises avoiding pharmacological therapy in long-term insomnia management, and hypnotics should be avoided where possible because of their potential for significant adverse effects.
  • Addresses maintaining mechanisms: CBT-I is particularly relevant because maladaptive behaviours and cognitions are thought to contribute to chronic insomnia.
  • Medication has a limited role: A short course of a non-benzodiazepine hypnotic may be considered only as adjunctive treatment in selected circumstances, rather than as the core long-term treatment for chronic insomnia.
  • Consistent with product information: Zopiclone is indicated for short-term treatment, with long-term continuous use not recommended and the lowest effective dose advised. ,

For primary-care practice, prioritise referral or access to CBT-I, including digital CBT-I where suitable, alongside assessment of comorbid physical or mental health conditions and other sleep disorders that may require targeted management.

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