Appendix 1.

Excluded studies with reasons of exclusion.

Study title	Author	Reason for exclusion
Behavioral management of sleep disturbances secondary to chronic pain	Morin et al., 1989	Case series
Cognitive-behavioral therapy for insomnia improves attentional function in fibromyalgia syndrome: A pilot, randomized controlled trial	Miro et al., 2011	Pain and sleep are not primary and secondary outcomes. Primary outcome is executive functioning. Amongst sleep outcomes, only sleep quality was measured, although sleep latency and wake after sleep onset was measured at baseline
A placebo controlled test of cognitive-behavioral therapy for co-morbid insomnia in older adults	Rybarczyk et al., 2005	Parent study of study (Vitiello et al) already reported
Clinical significance and predictors of treatment response to cognitive-behavior therapy for insomnia secondary to chronic pain	Currie et al., 2002	Study uses data from the Currie et al study (not independent) and does not measure sleep and pain outcomes
The role of self-help CBT-I in the management of insomnia symptoms associated with chronic disease	Morgan, 2011	Abstract only. The author was contacted and informed us that the full study has been submitted for publication. Once the study has been published, the details will be forwarded. Hence, this is an unpublished study
Psychological treatment of secondary insomnia	Lichstein et al., 2000	Does not measure pain and sleep as primary and secondary outcomes