Exploring alterations in sleep-related physiological and psychological outcomes across the menstrual cycle in young, healthy women without sleep disorders: a US-based pilot study protocol

Abstract Abstract: Introduction: Research suggests that hormonal fluctuations may contribute to sleep-related physiological and psychological outcomes that differentially affect women’s overall health and well-being. Yet, systematic enquiries on this potential interaction across the menstrual cycle are scant. Methods and analysis: This protocol paper describes a pilot observational study investigating changes in objective and subjective sleep measures, metabolic biomarkers (body temperature, blood glucose and hormonal concentrations) and psychological outcomes (depressive symptoms, menstrual cycle-related pain and psychological distress), in a cohort of