“…Only a small number of studies have investigated the effects of trauma-focused PTSD therapies on sleep outcomes ( Belleville et al., 2011 , Brownlow et al., 2016 , Galovski et al., 2009 , Galovski et al., 2016 , Gutner et al., 2013 , Levrier et al., 2016 , Lommen et al., 2015 , Nishith et al., 2003 , Raboni et al, 2006 , Zayfert and DeViva, 2004 ). Improvement in sleep has been found for prolonged exposure (PE) and cognitive processing therapy (CPT) for PTSD ( Brownlow et al., 2016 , Galovski et al., 2016 , Galovski et al., 2009 , Gutner et al., 2013 ), eye-movement desensitization and reprocessing therapy ( Raboni et al., 2006 ), other cognitive behavioural therapies ( Belleville et al., 2011 , Levrier et al., 2016 , Nishith et al., 2003 , Zayfert and DeViva, 2004 ), and cognitive therapy for PTSD (CT-PTSD) ( Lommen et al., 2015 ). Direct comparisons of two evidence-based, trauma-focused PTSD therapies, CPT and PE, found no differences in sleep improvement between treatments ( Galovski et al., 2009 ; Gutner et al., 2013 ).…”