Fatigue and sleep disturbance represent two of the most common symptoms associated with traumatic brain injury (TBI) and stroke, often co-existing. Despite this, there has been limited investigation of treatments and pharmacological interventions have not proved efficacious. This symposium, chaired by Professor Jennie Ponsford, will describe the development, evaluation and implementation of a cognitive behavioural intervention to address fatigue and sleep disturbance in individuals with TBI and stroke. Jennie Ponsford will outline the nature, causes and consequences of fatigue and sleep disturbance in individuals with TBI and stroke and their implications for treatment, leading to the development of this intervention. Sylvia Nguyen will present the results of a randomized controlled trial of an Adapted CBT intervention to address fatigue and sleep disturbance in individuals with TBI and stroke. Dana Wong will present case studies focusing on addressing fatigue and Adam McKay will present case studies focused on addressing sleep disturbance.