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Authors: M.E. Searles, A. Licata, M. Cucinotta, K. Kainec, and R.M.C. Spencer Abstract Study objectives: Changes in sleep with aging are associated with risk for Alzheimer’s and other neurological diseases, risk of accidents, and can be a predictor of health decline. For this reason, continuous sleep monitoring is of great interest for researchers, clinicians, and family members. The objective of this study was to assess the validity of consumer sleep-tracking devices in older relative to young adults. Methods: Analyses were based on one night of sleep assessed in young (19-24 years; n=13) and older adults (56-80 years; n=19). Participants wore sleep-tracking wearables (Fitbit Sense 2, Oura Ring) and nearables (Withings Sleep Mat, Sleep Score Max) were positioned nearby. Sleep measures were compared to polysomnography. Results: Results suggest that devices may be less accurate in older…