{Reference Type}: Journal Article {Title}: British Association for Psychopharmacology consensus statement on evidence-based treatment of insomnia, parasomnias and circadian rhythm disorders: An update. {Author}: Wilson S;Anderson K;Baldwin D;Dijk DJ;Espie A;Espie C;Gringras P;Krystal A;Nutt D;Selsick H;Sharpley A; {Journal}: J Psychopharmacol {Volume}: 33 {Issue}: 8 {Year}: 08 2019 {Factor}: 4.562 {DOI}: 10.1177/0269881119855343 {Abstract}: This British Association for Psychopharmacology guideline replaces the original version published in 2010, and contains updated information and recommendations. A consensus meeting was held in London in October 2017 attended by recognised experts and advocates in the field. They were asked to provide a review of the literature and identification of the standard of evidence in their area, with an emphasis on meta-analyses, systematic reviews and randomised controlled trials where available, plus updates on current clinical practice. Each presentation was followed by discussion, aiming to reach consensus where the evidence and/or clinical experience was considered adequate, or otherwise to flag the area as a direction for future research. A draft of the proceedings was circulated to all speakers for comments, which were incorporated into the final statement.