• Effects of digital cognitive behavioural therapy for insomnia on insomnia severity: a large-scale randomised controlled trial 

      Vedaa, Øystein; Kallestad, Håvard; Scott, Janine Linda; Smith, Otto Robert Frans; Pallesen, Ståle; Morken, Gunnar; Langsrud, Knut; Gehrman, Philip; Thorndike, Frances P.; Ritterband, Lee M.; Harvey, Allison G.; Stiles, Tore C; Sivertsen, Børge (Peer reviewed; Journal article, 2020)
      Background Although several large-scale randomised controlled trials have shown the efficacy of digital cognitive behavioural therapy for insomnia (dCBT-I), there is a need to validate widespread dissemination of dCBT-I ...
    • Internet-delivered cognitive-behavioral therapy for insomnia and comorbid symptoms 

      Hagatun, Susanne; Vedaa, Øystein; Harvey, Allison G.; Nordgreen, Tine; Smith, Otto Robert Frans; Pallesen, Ståle; Havik, Odd E.; Thorndike, Frances P.; Ritterband, Lee M.; Sivertsen, Børge (Journal article; Peer reviewed, 2018)
      Background Cognitive-behavioral therapy for insomnia (CBTi) is considered the standard treatment. The internet has proven to be a useful and successful tool of providing CBTi. However, few studies have investigated the ...
    • Long-Term Effects of an Unguided Online Cognitive Behavioral Therapy for Chronic Insomnia 

      Vedaa, Øystein; Hagatun, Susanne; Kallestad, Håvard; Pallesen, Ståle; Smith, Otto Robert Frans; Thorndike, Frances P; Ritterband, Lee M.; Sivertsen, Børge (Journal article; Peer reviewed, 2019)
      STUDY OBJECTIVES: The aim of this study was to test the efficacy of fully automated Internet-delivered cognitive behavioral therapy for insomnia (CBT-I) 18 months after the intervention period on sleep, daytime functioning, ...
    • Short and long-term effects of unguided internet-based cognitive behavioral therapy for chronic insomnia in morning and evening persons: a post-hoc analysis 

      Lien, Mats; Bredeli, Einar Rørstad; Sivertsen, Børge; Kallestad, Håvard; Pallesen, Ståle; Smith, Otto Robert Frans; Faaland, Patrick; Ritterband, Lee M.; Thorndike, Frances P.; Vedaa, Øystein (Journal article; Peer reviewed, 2019)
      A post-hoc analysis comparing morning and evening persons with insomnia on sleep and mental health characteristics was conducted in order to investigate whether an Internet-based cognitive behavioral therapy for insomnia ...