• Nicola Cellini, Francesca Conte, Oreste De Rosa, Fiorenza Giganti, Serena Malloggi, Mathilde Reyt, Camille Guillemin, Christina Schmidt, Vincenzo Muto, and Gianluca Ficca.
• Department of General Psychology, University of Padova, Padova, Italy; Department of Biomedical Sciences, University of Padova, Padova, Italy; Padova Neuroscience Center, University of Padova, Padova, Italy; Human Inspired Technology Center, University of Padova, Padova, Italy. Electronic address: nicola.cellini@unipd.it.
• Sleep Med. 2021 Jan 1; 77: 112-119.

AbstractItaly and Belgium have been among the first western countries to face the Coronavirus disease 2019 (COVID-19) emergency, imposing a total lockdown over the entire national territories. These limitations have proven effective in slowing down the spread of the infection. However, the benefits obtained in public health have come with huge costs in terms of social, economic, and psychological well-being. In the current study, we aimed to investigate how the period of home confinement affected self-reported sleep characteristics in Italians and Belgians, with special regard to sleep timing and subjective quality. Using an online survey we collected data from 2272 participants, 1622 Italians (Mage = 34.1 ± 13.6 years, 1171 F), and 650 Belgian (Mage = 43.0 ± 16.8 years, 509 F). Participants reported their sleep pattern (eg, bedtime, risetime) and perceived sleep quality during and, retrospectively, before the lockdown. During the lockdown, sleep timing was significantly delayed, time spent in bed increased, and sleep quality was markedly impaired in both Italians and Belgians. The most vulnerable individuals appeared to be women, subjects experiencing a more negative mood, and those perceiving the pandemic situation as highly stressful. However, the two samples differed in the subgroups most affected by the changes, possibly because of the different welfare systems of the two countries. In fact, in the Italian sample sleep quality and timing underwent significant modifications especially in unemployed participants, whereas in the Belgian sample this category was the one who suffered less from the restrictions. Considering that the novel coronavirus has spread across the whole globe, involving countries with different types of health and welfare systems, understanding which policy measures have the most effective protective role on physical and mental health is of primary importance.Copyright © 2020 Elsevier B.V. All rights reserved.

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