Long-term assessment of social jetlag by Fitbit smartwatch in patients with central disorder of hypersomnolence. - Zhang, Z.; Morand, R.; Fregolente, L.; van der Meer, J.; Wenz, E.S.; Warncke, J.D.; Zub, K.; von Manitius, S.; Miano, S.; Acker, J.; Strub, M.; Kallweit, U.; et al. (Sleep Medicine, 2026)