Poor sleep quality, particularly insomnia, is a frequent problem among individuals with mental health difficulties,[2](https://jcsm.aasm.org/doi/10.5664/jcsm.4452#B2) with reported prevalence rates of up to 78% in inpatient and outpatient populations.[3](https://jcsm.aasm.org/doi/10.5664/jcsm.4452#B3),[4](https://jcsm.aasm.org/doi/10.5664/jcsm.4452#B4) [[The prevalence and management of Poor sleep quality in a secondary care mental health population]]