Internet-delivered cognitive-behavioral therapy for insomnia and comorbid symptoms

A sample of 181 adults with insomnia showed significant short-term improvements in anxiety or depression and fatigue following unguided internet-delivered cognitive-behavioral therapy for insomnia (ICBTi).

• The ICBTi group exhibited medium to large effect sizes for reductions in symptoms of anxiety or depression (-0.57) and fatigue (0.92) from pre- to post-treatment.
• At a 6-month follow-up, participants from the ICBTi group experienced a significant increase in anxiety or depression symptoms compared to their post-treatment levels.
• The reduction in symptoms of fatigue was maintained at the 6-month follow-up.
• High dropout rates and lack of a control group limit the ability to draw conclusions about the long-term effects of ICBTi.

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