A closer look at CBT-I Cognitive Behavioural Therapy for Insomnia (CBT‑I) is the most researched and effective non‑drug treatment for long‑term insomnia. It’s recommended internationally because, unlike medication, it helps create lasting changes in how your sleep system functions. CBT‑I works by gradually retraining the body’s internal clock, rebuilding healthy sleep pressure, and shifting the thoughts and habits that unintentionally keep insomnia going. Over time, this process helps your brain relearn how to fall asleep naturally and stay asleep more consistently. Although it shares a name with general CBT, CBT‑I is a specialist, sleep‑focused programme used in dedicated clinics around the world. Its tools are designed specifically for insomnia and related sleep difficulties, and the approach is quite different from strategies used for anxiety or depression. Access to clinicians who are highly trained in CBT‑I is still limited, which is why I’ve dedicated my career to this work. I’ve been practising CBT‑I for over a decade and have delivered thousands of treatments through my NHS insomnia service. I’ll admit it’s a slightly selfish career choice, because there’s nothing more rewarding than seeing someone’s sleep and their life, transformed.