Study of Efficacy of WELT-IP in Insomnia (WCTP-I-B-02)

WELT-IP (an investigational digital therapeutic) is an CBT-I based intervention designed to treat insomnia, conducted in 6 sessions. It is a comprehensive program delivering sleep restriction, stimulation control, muscle relaxation, cognitive treatment, and sleep hygiene education. Main features are sleep diary, sleep reports, daily lessons of CBT-I, muscle relaxation techniques, and cognitive intervention through chatbot.

Sham was downloaded to the subject's phone and was subject was instructed to complete sleep diary and sleep educational contents as needed.