Sleep loss places caregivers at risk for poor health. Understanding correlates 
of sleep loss and relationships to health may enable improvement of health of 
caregivers of individuals with primary malignant brain tumors (PMBT). In this 
cross-sectional, descriptive study of 133 caregivers, relationships were 
examined between sleep loss and physical, mental, emotional, and social health 
at time of patient diagnosis. Sleep loss was not related to physical health. 
Shorter total sleep time was associated with greater fatigue and social support. 
Sleep quality was positively associated with quality of life. Further study is 
needed of the role of sleep loss in the PMBT caregiving trajectory and its 
long-term relationship with health outcomes.