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Insomnia is a significant health concern with annual incidence rates of approximately 36.6% in its acute and 2.8% in its chronic form.1 Importantly, insomnia is a significant risk factor for the development of several physical and psychological illnesses—most notably major depression.2 ,3 Despite advances in non-pharmacological insomnia treatments, specifically a 6–8-week course of cognitive-behavioural therapy for insomnia (CBT-I), significant barriers limit its implementation in primary care. The aim of this study was to examine a simplified version of a single component of CBT-I (ie, sleep restriction) in …
Competing interests None declared.
Provenance and peer review Commissioned; internally peer reviewed.