“…Of the 25 eligible studies identified, all focused on elements of CBT, such as sleep hygiene, stimulus control, sleep restriction (see Table 2). Only two studies specifically recruited from PC (Edinger & Sampson, 2003; Nakamura, Lipschitz, Landward, Kuhn, & West, 2011), with a majority of studies focusing on patients suffering from primary or general insomnia based on self-report (Buysse et al, 2011; Currie, Clark, Hodgins, & El-Guebaly, 2004; Chen et al, 2008; Dixon, Morgan, Mathers, Thompson, & Tomeny, 2006; Edinger & Sampson, 2003; Ellis, Cushing, & Germain, 2015; Fernando, Arroll, & Falloon, 2013; Fiorentino et al, 2010; Friedman, Bliwise, Yesavage, & Salom, 1991; Gellis, Arigo, & Elliott, 2013; Germain et al, 2006; Jacobs, Pace-Schott, Stickgold, & Otto, 2004; Jansson-Fröjmark, Lind, & Sunnhed, 2012; Lichstein, Riedel, Wilson, Lester, & Aguillard, 2001; Means, Lichstein, Epperson, & Johnson, 2000; Nakamura et al, 2011; Riedel et al, 1998; Shimodera et al, 2014; Sivertsen et al, 2006; Ulmer, Edinger, & Calhoun, 2011; Wagley, Rybarczyk, Nay, Danish, & Lund, 2013; Watanabe et al, 2011). Number of intervention appointments ranged from 1–6 ( M = 3.9, mode = 4), and duration ranged from 25–60 min ( M = 48 min, n = 2 studies not reporting duration).…”