Sleepio is an app for treating chronic insomnia, by using cognitive behavioural therapy. Using the app is fully digital and does not require a therapist. Cognitive behavioural therapy has been proven to be effective for treating insomnia, and regular cognitive behavioural therapy is done under supervision of a therapist. After the 6-week treatment, Sleepio users fall asleep faster, wake up less often during the night, and have more energy and better concentration during the day. Since June 2019, Sleepio’s developer Big Health has been working with CVS Health, owner of a large pharmacy chain, in the United States. This way, the app can be reimbursed by health insurance companies using the same infrastructure as regular medicine.