Background: Insomnia disorder in adolescence is prevalent, persistent and associated with adverse outcomes, including reduced quality of life. Cognitive behavioural therapy for insomnia (CBT-i) has shown promise as an effective treatment for adolescents. Recent research has highlighted the role of emotion regulation in insomnia, suggesting that the inclusion of emotion regulation techniques may enhance CBT-i.

Aims: To evaluate the feasibility and preliminary effectiveness of a CBT-i treatment program for insomnia in early adolescence, augmented with emotion regulation strategies, using a case-series design.

Method: Three participants (mean 11.67 years) completed the program that consisted of seven, weekly individual therapy sessions and parental participation. Participants monitored their sleep daily during the intervention, and insomnia diagnostic status and severity, use of emotion regulation strategies and quality of life were assessed at baseline, post-intervention and at 6-week follow-up.

Results: At post-treatment, none of the participants met criteria for insomnia and all reported statistically reliable reductions in symptoms. Improvements were maintained at follow-up for two participants. Sleep onset latency was reduced and improvements in quality of life were evident. There were no changes in the use of emotion regulation strategies following treatment. Adolescents and parents reported high program satisfaction.

Conclusions: This preliminary evaluation provides support for the effectiveness of the CBT-i program tested. However, given that emotion regulation did not change and yet improvements in sleep were evident, the usefulness of augmenting the program with emotion regulation strategies requires further evaluation.