The GoodNight study-online CBT for insomnia for the indicated prevention of depression: Study protocol for a randomised controlled trial

Abstract

Background: Cognitive Behaviour Therapy for Insomnia (CBT-I) delivered through the Internet is effective as a treatment in reducing insomnia in individuals seeking help for insomnia. CBT-I also lowers levels of depression in this group. However, it is not known if targeting insomnia using CBT-I will lower depressive symptoms, and thus reduce the risk of major depressive episode onset, in those specifically at risk for depression. Therefore, this study aims to examine whether Internet delivery of fully automated self-help CBT-I designed to reduce insomnia will prevent depression.Method/design: A sample of 1,600 community-dwelling adults (aged 18-64), who screen positive for both subclinical l..