2022

• Kjørstad, Kaia; Faaland, Patrick; Sivertsen, Børge; Kallestad, Håvard; Langsrud, Knut; Vethe, Daniel. (2022) Sleep and work functioning in nurses undertaking inpatient shifts in a blue-depleted light environment. BMC Nursing
  Academic article
• Faaland, Patrick; Vedaa, Øystein; Langsrud, Knut; Sivertsen, Børge; Lydersen, Stian; Vestergaard, Cecilie Lund. (2022) Digital cognitive behaviour therapy for insomnia (dCBT-I): Chronotype moderation on intervention outcomes. Journal of Sleep Research
  Academic article
• Vethe, Daniel; Drews, Henning Johannes; Scott, Janine Linda; Engstrøm, Morten; Heglum, Hanne Siri Amdahl; Grønli, Janne. (2022) Evening light environments can be designed to consolidate and increase the duration of REM-sleep. Scientific Reports
  Academic article
• Heglum, Hanne Siri Amdahl; Drews, Henning Johannes; Kallestad, Håvard; Vethe, Daniel; Langsrud, Knut; Sand, Trond. (2022) Contact-free radar recordings of body movement can reflect ultradian dynamics of sleep. Journal of Sleep Research
  Academic article
• Kjørstad, Kaia; Sivertsen, Børge; Vedaa, Øystein; Langsrud, Knut; Vethe, Daniel; Faaland, Patrick. (2022) The effects of digital CBT-I on work productivity and activity levels and the mediational role of insomnia symptoms: Data from a randomized controlled trial with 6-month follow-up. Behaviour Research and Therapy
  Academic article
• Scott, Janine Linda; Vedaa, Øystein; Sivertsen, Børge; Langsrud, Knut; Kallestad, Håvard. (2022) Using network intervention analysis to explore associations between participant expectations of and difficulties with cognitive behavioural therapy for insomnia and clinical outcome: A proof of principle study. Journal of Psychiatric Research
  Academic article

2021

• Heglum, Hanne Siri Amdahl; Kallestad, Håvard; Vethe, Daniel; Langsrud, Knut; Sand, Trond; Engstrøm, Morten. (2021) Distinguishing sleep from wake with a radar sensor: A contact-free real-time sleep monitor. Sleep
  Academic article
• Saksvik-Lehouillier, Ingvild; Langvik, Eva ; Saksvik, Simen Berg; Kallestad, Håvard; Follesø, Hanna Størksen; Austad, Sigrun Borgen. (2021) High neuroticism is associated with reduced negative affect following sleep deprivation. Personality and Individual Differences
  Academic article
• Kallestad, Håvard; Saksvik, Simen Berg; Vedaa, Øystein; Langsrud, Knut; Morken, Gunnar; Lydersen, Stian. (2021) Digital cognitive-behavioural therapy for insomnia compared with digital patient education about insomnia in individuals referred to secondary mental health services in Norway: Protocol for a multicentre randomised controlled trial. BMJ Open
  Academic article
• Vestergaard, Cecilie Lund; Vedaa, Øystein; Simpson, Melanie Rae; Faaland, Patrick; Vethe, Daniel; Kjørstad, Kaia. (2021) The effect of sleep-wake intraindividual variability in digital cognitive behavioral therapy for insomnia: a mediation analysis of a large-scale RCT. Sleep
  Academic article
• Kallestad, Håvard; Scott, Janine Linda; Vedaa, Øystein; Lydersen, Stian; Vethe, Daniel; Morken, Gunnar. (2021) Mode of delivery of Cognitive Behavioral Therapy for Insomnia: a randomized controlled non-inferiority trial of digital and face-to-face therapy. Sleep
  Academic article
• Saksvik, Simen Berg; Smevik, Hanne; Stenberg, Jonas; Follestad, Turid; Vik, Anne; Håberg, Asta. (2021) Poor sleep quality is associated with greater negative consequences for cognitive control function and psychological health after mild traumatic brain injury than after orthopedic injury. Neuropsychology
  Academic article
• Scott, Jan; Kallestad, Håvard; Vedaa, Øystein; Sivertsen, Børge; Etain, Bruno. (2021) Sleep disturbances and first onset of major mental disorders in adolescence and early adulthood: A systematic review and meta-analysis. Sleep Medicine Reviews
  Academic literature review
• Bredeli, Einar Rørstad; Vestergaard, Cecilie Lund; Sivertsen, Børge; Kallestad, Håvard; Øverland, Simon Nygaard; Ritterbandt, Lee M.. (2021) Intraindividual variability in sleep among people with insomnia and its relationship with sleep, health and lifestyle factors: an exploratory study. Sleep Medicine
  Academic article
• Scott, Janine Linda; Langsrud, Knut; Goulding, Ingunn Rø; Kallestad, Håvard. (2021) Let there be blue-depleted light: In-patient dark therapy, circadian rhythms and length of stay. BJ Psych Advances
  Academic article

2020

• Vedaa, Øystein; Kallestad, Håvard; Scott, Janine Linda; Smith, Otto Robert Frans; Pallesen, Ståle; Morken, Gunnar. (2020) Effects of digital cognitive behavioural therapy for insomnia on insomnia severity: a large-scale randomised controlled trial. The Lancet Digital Health
  Academic article
• Kjørstad, Kaia; Sivertsen, Børge; Vedaa, Øystein; Langsrud, Knut; Faaland, Patrick; Vethe, Daniel. (2020) The Effect of Reducing Insomnia Severity on Work- and Activity-Related Impairment. Behavioral Sleep Medicine
  Academic article
• Drews, Henning Johannes; Scott, Janine Linda; Langsrud, Knut; Vethe, Daniel; Kallestad, Håvard. (2020) Chronobiologically informed inpatient milieu in psychiatric institutions. The Lancet Psychiatry
  Letter to the editor
• Saksvik, Simen Berg; Karaliute, Migle; Kallestad, Håvard; Follestad, Turid; Asarnow, Robert F.; Vik, Anne. (2020) The prevalence and stability of sleep-wake disturbance and fatigue throughout the first year after mild traumatic brain injury. Journal of Neurotrauma
  Academic article
• Filosa, James; Omland, Petter Moe; Langsrud, Knut; Hagen, Knut; Engstrøm, Morten; Drange, Ole Kristian. (2020) Validation of insomnia questionnaires in the general population: The Nord-Trøndelag Health Study (HUNT). Journal of Sleep Research
  Academic article
• Vethe, Daniel; Scott, Janine Linda; Engstrøm, Morten; Salvesen, Øyvind; Sand, Trond; Olsen, Alexander. (2020) The evening light environment in hospitals can be designed to produce less disruptive effects on the circadian system and improve sleep. Sleep
  Academic article
• Saksvik-Lehouillier, Ingvild; Saksvik, Simen Berg; Dahlberg, Berit Johanna; Tanum, Tiril Kristine; Ringen, Heidi; Karlsen, Håvard Rudi. (2020) Mild to moderate partial sleep deprivation is associated with increased impulsivity and decreased positive affect in young adults. Sleep
  Academic article
• Osnes, Rannveig Storaune; Eberhard-Gran, Malin; Follestad, Turid; Kallestad, Håvard; Morken, Gunnar; Roaldset, John Olav. (2020) Mid-pregnancy insomnia is associated with concurrent and postpartum maternal anxiety and obsessive-compulsive symptoms: A prospective cohort study. Journal of Affective Disorders
  Academic article
• Osnes, Rannveig Storaune; Eberhard-Gran, Malin; Follestad, Turid; Kallestad, Håvard; Morken, Gunnar; Roaldset, John Olav. (2020) Mid-Pregnancy Insomnia and its Association with Perinatal Depressive Symptoms: A Prospective Cohort Study. Behavioral Sleep Medicine
  Academic literature review

2019

• Lane, Jacqueline M.; Jones, Samuel E.; Dashti, Hassan S.; Wood, Andrew R.; Aragam, Krishna G; van Hees, Vincent T.. (2019) Biological and clinical insights from genetics of insomnia symptoms. Nature Genetics
  Academic article
• Liu, Mengzhen; Jiang, Yu; Wedow, Robbee; Li, Yue; Brazel, David M.; Chen, Fang. (2019) Association studies of up to 1.2 million individuals yield new insights into the genetic etiology of tobacco and alcohol use. Nature Genetics
  Academic article
• Scott, Janine Linda; Grierson, Ashlee; Lillian, Gehue; Kallestad, Håvard; MacMillan, Iain; Hickie, Ian. (2019) Can consumer grade activity devices replace research grade actiwatches in youth mental health settings?. Sleep and Biological Rhythms
  Academic article
• Kallestad, Håvard; Kjørstad, Kaia; Vethe, Daniel; Vestergaard, Cecilie Lund; Faaland, Patrick; Langsrud, Knut. (2019) Det nye sykehusbygget på Østmarka integrerer behandling, innovasjon og søvnforskning. SØVN
  Popular scientific article
• Lien, Mats; Bredeli, Einar Rørstad; Sivertsen, Børge; Kallestad, Håvard; Pallesen, Ståle; Smith, Otto Robert Frans. (2019) Short and long-term effects of unguided internet-based cognitive behavioral therapy for chronic insomnia in morning and evening persons: a post-hoc analysis. Chronobiology International
  Academic article
• Langsrud, Knut; Vaaler, Arne; Morken, Gunnar; Kallestad, Håvard; Almvik, Roger; Palmstierna, Tom Krisman Kule. (2019) The predictive properties of violence risk instruments may increase by adding items assessing sleep. Frontiers in Psychiatry
  Academic article
• Gottlieb, John F.; Benedetti, Francesco; Geoffroy, Pierre A.; Henriksen, Tone Elise Gjøtterud; Lam, Raymond W.; Murray, Greg. (2019) The chronotherapeutic treatment of bipolar disorders: A systematic review and practice recommendations from the ISBD task force on chronotherapy and chronobiology. Bipolar Disorders
  Academic literature review
• Scott, Janine Linda; Langsrud, Knut; Vethe, Daniel; Kjørstad, Kaia; Vestergaard, Cecilie Lund; Faaland, Patrick. (2019) A pragmatic effectiveness randomized controlled trial of the duration of psychiatric hospitalization in a trans- diagnostic sample of patients with acute mental illness admitted to a ward with either blue-depleted evening lighting or normal lighting conditions. Trials
  Academic article
• Vedaa, Øystein; Hagatun, Susanne; Kallestad, Håvard; Pallesen, Ståle; Smith, Otto Robert Frans; Thorndike, Frances P. (2019) Long-Term Effects of an Unguided Online Cognitive Behavioral Therapy for Chronic Insomnia. Journal of Clinical Sleep Medicine (JCSM)
  Academic article

2018

• Solheim, Brandy; Olsen, Alexander; Kallestad, Håvard; Langsrud, Knut; Bjorvatn, Bjørn; Gradisar, Michael. (2018) Cognitive performance in DSWPD patients upon awakening from habitual sleep compared with forced conventional sleep. Journal of Sleep Research
  Academic article
• Kallestad, Håvard; Langsrud, Knut; Vedaa, Øystein; Stiles, Tore C; Vethe, Daniel; Lydersen, Stian. (2018) A randomized noninferiority trial comparing Cognitive Behavior Therapy for Insomnia (CBT-I) delivered by a therapist or via a fully automated online treatment program. Sleep
  Abstract
• Vethe, Daniel; Kallestad, Håvard; Jacobsen, Henrik Børsting; Landrø, Nils Inge; Borchgrevink, Petter Chr.; Stiles, Tore C. (2018) The relationship between improvement in insomnia severity and long-term outcomes in the treatment of chronic fatigue. Frontiers in Psychology
  Academic article
• Solheim, Brandy; Langsrud, Knut; Kallestad, Håvard; Engstrøm, Morten; Bjorvatn, Bjørn; Sand, Trond. (2018) Sleep structure and awakening threshold in delayed sleep-wake phase disorder patients compared to healthy sleepers. Sleep Medicine
  Academic article
• Langsrud, Knut; Kallestad, Håvard; Vaaler, Arne; Almvik, Roger; Palmstierna, Tom Krisman Kule; Morken, Gunnar. (2018) Sleep at night and association to aggressive behaviour; Patients in a psychiatric intensive care unit. Psychiatry Research
  Academic article
• Kallestad, Håvard; Vedaa, Øystein; Scott, Janine Linda; Morken, Gunnar; Pallesen, Ståle; Harvey, Allison G.. (2018) Overcoming insomnia: Protocol for a large-scale randomised controlled trial of online cognitive behaviour therapy for insomnia compared with online patient education about sleep. BMJ Open
  Academic article

2017

• Jacobsen, Henrik Børsting; Kallestad, Håvard; Landrø, Nils Inge; Borchgrevink, Petter Chr.; Stiles, Tore Charles. (2017) Processes in acceptance and commitment therapy and the rehabilitation of chronic fatigue. Scandinavian Journal of Psychology
  Academic article

2016

• Krane-Gartiser, Karoline; Steinan, Mette Kvisten; Langsrud, Knut; Vestvik, Vegard; Sand, Trond; Fasmer, Ole Bernt. (2016) Mood and motor activity in euthymic bipolar disorder with sleep disturbance. Journal of Affective Disorders
  Academic article
• Kallestad, Håvard; Wullum, Elin; Scott, Janine Linda; Stiles, Tore Charles; Morken, Gunnar. (2016) The long-term outcomes of an effectiveness trial of group versus individual psychoeducation for bipolar disorders. Journal of Affective Disorders
  Academic article
• Langsrud, Knut; Vaaler, Arne Einar; Kallestad, Håvard; Morken, Gunnar. (2016) Sleep patterns as a predictor for length of stay in a psychiatric intensive care unit. Psychiatry Research
  Academic article

2015

• Kallestad, Håvard; Jacobsen, Henrik Børsting; Landrø, Nils Inge; Borchgrevink, Petter Chr.; Stiles, Tore C. (2015) The role of insomnia in the treatment of chronic fatigue. Journal of Psychosomatic Research
  Academic article

2014

• Steinan, Mette Kvisten; Krane-Gartiser, Karoline; Langsrud, Knut; Sand, Trond; Kallestad, Håvard; Morken, Gunnar. (2014) Cognitive behavioral therapy for insomnia in euthymic bipolar disorder: study protocol for a randomized controlled trial. Trials
  Academic article
• Solheim, Brandy; Langsrud, Knut; Kallestad, Håvard; Olsen, Alexander; Bjorvatn, Bjørn; Sand, Trond. (2014) Difficult morning awakening from rapid eye movement sleep and impaired cognitive function in delayed sleep phase disorder patients. Sleep Medicine
  Academic article

2013

• Steinan, Mette Kvisten; Krane-Gartiser, Karoline; Langsrud, Knut; Sand, Trond; Kallestad, Håvard; Morken, Gunnar. (2013) Cognitive behavioral theapy for insomnia in euthymic bipolar disorder: a randomized controlled trial. Bipolar Disorders
  Abstract
• Krane-Gartiser, Karoline; Steinan, Mette Kvisten; Langsrud, Knut; Sand, Trond; Kallestad, Håvard; Morken, Gunnar. (2013) Sleep architecture in euthymic bipolar disorder and comorbid insomnia. Bipolar Disorders
  Abstract

2012

• Kallestad, Håvard; Hansen, Bjarne; Langsrud, Knut; Ruud, Torleif; Morken, Gunnar; Stiles, Tore C. (2012) Impact of sleep disturbance on patients in treatment for mental disorders. BMC Psychiatry
  Academic article

2011

• Kallestad, Håvard; Hansen, Bjarne; Langsrud, Knut; Ruud, Torleif; Morken, Gunnar; Stiles, Tore C. (2011) Differences between patients’ and clinicians’ report of sleep disturbance: a field study in mental health care in Norway. BMC Psychiatry
  Academic article

2010

• Kallestad, Håvard; Hansen, Bjarne; Langsrud, Knut; Hjemdal, Odin; Stiles, Tore C. (2010) Psychometric properties and the predictive validity of the Insomnia Daytime Worry Scale: A pilot study. Cognitive Behaviour Therapy
  Academic article
• Kallestad, Håvard; Valen, Jakob; McCullough, Leigh; Svartberg, Martin; Høglend, Per Andreas; Stiles, Tore C. (2010) The relationship between insight gained during therapy and long-term outcome in short-term dynamic psychotherapy and cognitive therapy for cluster C personality disorders. Psychotherapy Research
  Academic article

2007

• Kallestad, Håvard; Langsrud, Knut; Hansen, Bjarne. (2007) Søvndeprivasjon som antidepressiv behandling. Tidsskrift for Den norske legeforening
  Academic literature review