Abstract
Background: Sleep, a multi-dimensional experience, is essential for optimal physical and mental wellbeing. Poor sleep is associated with worse wellbeing but data are scarce from multi-site studies on sleeping-related distress in palliative care populations. Aim: To evaluate patient-reported distress related to sleep and explore key demographic and symptom distress related to pain, breathing or fatigue. Design: Australian national, consecutive cohort study with prospectively collected point-of-care data using symptoms from the Symptom Assessment Scale (SAS). Setting/Participants: People (n = 118,117; 475,298 phases of care) who died while being seen by specialist palliative care services (n = 152) 2013–2019. Settings: inpatient (direct care, consultative); community (outpatient clinics, home, residential aged care). Results: Moderate/severe levels of sleeping-related distress were reported in 11.9% of assessments, more frequently by males (12.7% vs 10.9% females); people aged