Feasibility and Effectiveness of an Internet-based Intervention to Manage Fatigue in Breast Cancer Survivors

Inclusion Criteria: * breast cancer diagnoses * not currently receiving active treatment in the form of chemotherapy or radiation therapy * at least 18 years of age * fatigue severe enough to limit daily activities (score ≥ 4 on 7-point Fatigue Severity Scale)(Krupp, LaRocca, Muir-Nash, \& Steinberg, 1989); * functional English fluency and literacy; * Participant has a smart device that operates on the Android or Apple platform * Participant is able to use the Ecological Momentary Assessment application before going to bed every night Exclusion Criteria: * self-reported history of diagnosis of co-morbidities that have been associated with poor sleep and fatigue: chronic insomnia, chronic fatigue syndrome, unstable heart, lung, or neuromuscular disease, insulin-dependent diabetes, sleep apnea, chronic oral steroid therapy, and night-shift employment, * Disability due to a diagnosis other then breast cancer * Currently taking medication for depression, sleep issues, or fatigue.