“…Insomnia does not only manifest as nighttime symptoms (i.e., difficulty falling or staying asleep, waking too early), but also accompanied by daytime functional impairment (i.e., fatigue, daytime sleepiness, and attention impairment) (Sutton, 2021). Previous studies have shown that insomnia is associated with increased risk of psychiatric (i.e., depression and anxiety) (Riemann, 2007;Staner, 2010;Li et al, 2016;Chellappa and Aeschbach, 2022) and cardiometabolic morbidity (Vgontzas et al, 2009a,b;Li et al, 2015;Bertisch et al, 2018;Laaboub et al, 2022), as well as an economic burden on the overall healthcare system (Taddei-Allen, 2020;Streatfeild et al, 2021). Cognitive behavioral treatment -insomnia (CBT-I) is considered "first line" treatment, however there is a large number of patients that do not respond well to this treatment modality (Bathgate et al, 2017) and may respond better to biological treatments (Vgontzas et al, 2020;Li et al, 2021).…”