PICO | Inclusion Criteria | Exclusion Criteria |
Population: | Adults: ≥18, have schizophrenia, schizoaffective disorder or psychosis (paranoia or hallucinations) with short- or long-term conditions associated with sleep disturbances | <18 years, Diagnosed as Sleep Apnoea or Parasomnia disorder Sleep disorder due to any other physical or medical condition |
Intervention | Cognitive Behavioural Therapy for Insomnia | None provided at least one group received CBT |
Comparison | Usual standard care or placebo or control group | None |
Outcomes | Quality of sleep and Psychological Well-being | None |