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Cognitive-behavioral therapy (CBT) for insomnia — which includes behavioral components (limiting stimuli, restricting sleep, relaxation), cognitive components (managing sleep-related worries and intrusive thoughts), and education about sleep hygiene — is the preferred in-person treatment for insomnia. To examine the effectiveness of a web-based digital version (dCBT), U.K. investigators enrolled 1711 people in a randomized comparison of automated dCBT and online sleep hygiene education (SHE). The study was funded by the owner of the dCBT program.
All patients continued whatever ongoing treatments that they were already taking (including medications). Automated dCBT consisted of six 20-minute sessions augmented by a smartphone app; SHE materi…