Mangini and colleagues link bed location in a hospital ward to patient sleep. This research team found that “Fifty inpatients were randomized to either CircadianCare . . . or standard of care. . . . Patients in the CircadianCare arm followed 1 of 3 schedules for light/dark, meal, and physical activity timings, based on their diurnal preference/habits. They wore short-wavelength-enriched light-emitting glasses for 45 min after awakening and short-wavelength light filter shades from 18:00 h until sleep onset. . . . there was a trend . . . toward an advance in bedtime for CircadianCare compared to standard of care patients between T0 [time zero] and T1 [time 1]. Similarly, DLMO [dim light melatonin onset] time significantly advanced in the small group of patients for whom it could be computed on both occasions, with untreated ones starting from earlier baseline values. Patients sleeping near the window had significantly higher sleep efficiency, regardless of treatment arm.”
Chiara Mangini, Lisa Zarantonello, Chiara Formentin, Gianluca Giusti, Esther Domeneke, and Sara Montagnese. “Managing Circadian Disruption Due to Hospitalization: A Pilot Randomized Controlled Trial of the CircadianCare Inpatient Management System” Journal of Biological Rhythms, in press, https://doi.org/10.1177/07487304231213916