About Stellar Sleep
Stellar Sleep is an insomnia app from Merlin Collective that started at Harvard Innovation Labs. Daily 5-10 minute lessons cover the main parts of cognitive behavioral therapy for insomnia, such as sleep restriction, stimulus control and changing unhelpful thoughts about sleep, and the company says it also draws on acceptance and commitment therapy. A sleep diary tracks your progress, with relaxation audio and journaling. After a 7-day trial you choose the price of, it is a subscription: Stellar's FAQ says programs start at $188, and a July 2026 check of the checkout reported $188 a month, with a 30-day refund window. No peer-reviewed study of the app itself was found; the company's claim that it beat sleeping pills comes from its own unpublished assessment.