A study published in Sleep Medicine found cognitive behavioral therapy for insomnia (CBTi) was associated with moderate-to-large improvement of depression, anxiety, and stress in patients with insomnia.
The researchers conducted a retrospective chart review of 455 patients with chronic insomnia treated in an outpatient CBTi program. The patients attended a program in Adelaide, South Australia, between February 2004 and November 2015. The researchers examined the effects of depression, anxiety, and stress on the effectiveness of the CBTi program.