“…Finally, the four ODs were validated by expert consensus, after evaluating the contributions of previous studies. Regarding the levels of absenteeism and workplace accidents, many studies in the current literature have identified a direct relationship between insomnia and these phenomena (Brossoit et al, 2019;Espie et al, 2018;Kao, Spitzmueller, Cigularov, & Wu, 2016;Rajaratnam, Licamele, & Birznieks, 2015;Reynolds et al, 2017;Shahly et al, 2012) and other studies have shown a relationship between changes in affect and emotional instability (Motomura & Mishima, 2014;Palmer & Alfano, 2017). Likewise, in relation to the number of hours of sleep, many interventions have established the link between insomnia and the number of times the subject wakes up at night or before the scheduled time, with objective sleep data obtained by using sleep diaries and wrist actigraphs (Crain et al, 2019;Järnefelt et al, 2019;Olson et al, 2015;Persson Asplund et al, 2018).…”