“…Many sleep scientists used sleep quality or similar constructs to document changes in sleep during the COVID-19 quarantines. Many studies across numerous countries reported a worsening of sleep quality, increasing sleep problems, or increasing problems with insomnia during quarantine conditions ( Blume et al, 2020 ; Peretti-Watel et al, 2020 ; Pinto et al, 2020 ; Voitsidis et al, 2020 ; AlRasheed et al, 2021 ; Cellini et al, 2021 ; Conte et al, 2021 ; Hisler and Twenge, 2021 ; Hyun et al, 2021 ; Marelli et al, 2021 ; Martínez-de-Quel et al, 2021 ; Robillard et al, 2021 ). However, some studies found that sleep quality did not worsen across all participants ( Benham, 2020 ; Gao and Scullin, 2020 ; Kocevska et al, 2020 ; Tahara et al, 2021 ).…”