“…A spate of studies during the past few years suggests that sleep impairment can improve if PTSD treatment is augmented with interventions that target specific types of sleep disturbances (DeViva, Zayfert, Pigeon, & Mellman, ; Gellis & Gerhman, ; Germain, Shear, Hall, & Buysse, ; Margolies, Rybarczyk, Vrana, Leszczyszyn, & Lynch, ; Perlman, Arnedt, Earnheart, Gorman, & Shirley, ; Ulmer, Edinger, & Calhoun, ). Similar findings have been reported for treatment‐resistant insomnia associated with depression (Manber et al., ).…”