Table 2.

Inclusion and Exclusion Criteria

Inclusion	Exclusion
English language publications irrespective of the country was conducted
Intervention studies published in peer-reviewed journals	Systematic reviews, dissertations, presentation abstracts, brief reports, letters to the editors
Nonpharmacological interventions	Model of care (e.g., palliative care team) as an intervention instead of a specific intervention
Experimental or quasi-experimental studies	Single case studies or studies with a cross-sectional design
Adult participants with advanced or serious illness, that is, there is no cure for their illness, general health and functioning decline, and treatments begin to lose their impact. This includes advanced cancer, moderate-to-late state Alzheimer's Disease/dementia, end-stage renal disease, and those receiving palliative, long-term care, or hospice services at home or in a nursing home. For those with cancer, “advanced,” recurrent, metastatic (such as stage IV prostate, breast, head/neck, or colorectal cancer, and stages IIIB or IV lung cancer)	Cancer patients in remission or considered a survivor without expectation of recurrence
Any setting, including palliative care or hospice	Simulated healthcare setting
Sleep as a subjective (self-reported) or objective outcome (primary or secondary)	Sleep not measured with tools