Family caregivers are a quickly growing population in American society and are potentially vulnerable to a number of risks to well-being. High stress and little support can combine to cause difficulties in health and personal relationships. Siblings are, however, a possible source of protection for the at-risk caregiver. This study examines the relationships between caregiver burden, relational conflict, individual contribution, and gratitude exchange between caregivers and their siblings as they attend to the issue of caring for aging parents.