Poor quality of sleep and its consequences on mental health during COVID-19 lockdown in Italy
BackgroundCoronavirus disease 2019 (COVID-19) seriously affected all Italy. The extreme virulence, the speed of propagation resulted in restrictions and home confinement. This change was immediately perceived by people who found themselves exposed to feelings of uncertainty, fear, anger, stress and a drastic change in the diurnal but above all nocturnal lifestyle. For these reasons, we aimed to study the quality of sleep and its connection to distress levels and evaluate how lifestyle changed in the Italian population during the lockdown.MethodsThrough an internet survey we recruited 6,519 adults during the whole COVID-19 lockdown (from 10thMarch – 1st phase - to 4th May – 2nd phase). We investigated the socio-demographic and COVID-19 related information and assessed sleep quality using the Medical Outcomes Study - sleep scale (MOS-SS) and mental health with the short form of Depression, Anxiety, and Stress Scales – 21 Items (DASS-21). Multiple logistic regression model was used to evaluate the multivariate association between the dependent variable (good sleeper vs. poor sleeper) and all the variables that were significant in the univariate analysis.Results3,562 (55.32%) participants reported poor sleep quality according to the MOS-Sleep Index II score. The multiple binary logistic regression results of poor sleepers reveal several risk factors during the outbreak restrictions: female gender, living in Central Italy, having someone close who died due to COVID-19, markedly changed sleep-wake rhythm characterized by earlier or postponed habitual bedtime, earlier habitual awakening time and reduced number of afternoon naps, extremely severe levels of stress, of anxiety, and of depression. ConclusionsThis is the first study designed to understand sleep quality and sleep habits during the whole lockdown in the Italian population that provides more than 6,000 participants in a survey developed specifically for the health emergency related to COVID-19. Our study found that more than half of the Italian population have had impaired sleep quality and sleep habits elevated psychological distress during the COVID-19 lockdown containment measures. A multidisciplinary action should be taken in order to plan appropriate responses to the current crisis caused by the COVID-19 health emergency.