Are wearable EEG devices more accurate than fitness wristbands for home sleep Tracking? Comparison of consumer sleep trackers with clinical devices

This study aimed to compare two off-the-shelf sleep tracking devices, Fitbit (wearable fitness wristband) and Neuroon (wearable EEG eye mask), for measuring sleep under free living conditions. Taking the measurements of a clinical sleep monitor as the ground truth, we compared the measurements of Fitbit and Neuroon on total sleep time (TST), wake after sleep onset (WASO), the number of awakenings (NAWK), sleep onset latency (SOL), and sleep efficiency (SE). Although the users of home sleep tracking technologies generally assume that the measurements by EEG-based sleep trackers are more accurate than movement-based wristbands, our study showed that compared to Neuroon EEG eye mask, the measurements by Fitbit wristband agreed better to those of the clinical device.