Effect of insomnia treatments on depression: A systematic review and meta-analysis.
Marie Anne GebaraNalyn SiripongElizabeth A DiNapoliRachel D MareeAnne GermainCharles F ReynoldsJohn W KasckowPatricia M WeissJordan F KarpPublished in: Depression and anxiety (2018)
These results support that treating insomnia in patients with depression has a positive effect on mood. Future trials are needed to identify the subtypes of patients whose depression improves during treatment with insomnia-specific interventions, and to identify the mechanisms by which treating insomnia improves mood.