Activas Diagnostics LLC, spun out of the University of Maine, develops products for diagnostics of mild traumatic brain injury (TBI). The company's primary solution is a patented non-invasive wireless sensor system and software for brain injury detection. The SleepMove device comprises a suite of algorithms that replicate standard Sleep-Wake measures, i.e. WASO (wake after sleep onset), time in bed, sleep efficiency, number and duration of sleep and arousal events, that have been confirmed with commercial actigraphy, and polysomnography (PSG).