Persistence of the Effects of the COVID-19 Lockdown on Sleep: A Longitudinal Study oleh Maurizio Gorgoni, Serena Scarpelli, Anastasia Mangiaruga, Valentina Alfonsi, Maria R. Bonsignore, Francesco Fanfulla, Luigi Ferini-Strambi, Lino Nobili, Giuseppe Plazzi, Luigi De Gennaro, on behalf of the Board of the Italian Association of Sleep Medicine (AIMS)