Inclusion/exclusion criteria for REST study
| Inclusion criteria | Exclusion criteria |
| Able to give informed consent | Currently receiving treatment (psychological or pharmacological) from mental health services (eg, GP, private clinic, Improving Access to Psychological Therapies services, specialist and community mental health services) |
| English-speaking | Retiring in the next 10 months |
| In employment (including being on furlough)† | Currently taking part in other psychological intervention trials |
| Insomnia Severity Index score: x<8* | |
| General Anxiety Disorder-7 score: x>4 or Patient Health Questionnaire-9 score: x>4 | |
| ≥18 years of age |
*We use the Insomnia Severity Index to differentiate REST from other trials being conducted at the same time with the INWORK programme. This criterion of <8 is used to ensure that REST can be differentiated and that there is no population overlap with other INWORK trials.
†We do not specify on working hours, or place of work.
GP, General Practitioner.