Stellar Sleep

Stellar Sleep is a digital health company focused on chronic insomnia, defined as sleep problems at least three nights a week for more than three months. Its core product is a mobile app grounded in cognitive behavioral therapy for insomnia (CBT-I) that combines techniques including cognitive behavioral therapy, acceptance and commitment therapy and motivational interviewing, plus sleep restriction, paradoxical intention and cognitive restructuring exercises. Users complete a sleep quiz and an onboarding assessment, can connect wearables, and receive a personalized interactive program requiring roughly 5-10 minutes of daily use, including guidance during the night; the program adapts as the user logs sleep data.

Alongside the app, the company operates a network of insomnia specialists that practices nationwide and works with insurance, with patients routed by quiz to either the app program or a matched clinician. Underpinning both is Rhythm, an in-house AI operations platform in which AI agents handle routine administrative work so clinicians spend more time on patient care. The company frames its thesis around chronic insomnia being commonly driven by underlying psychological factors such as unresolved anxiety, burnout or depression, rather than sleep hygiene alone, and describes a supply gap in which more than 10,000 people with chronic insomnia exist for every clinician trained to treat the condition.

The legal entity behind the product is Twenty Nights, Inc. The company describes itself as the largest insomnia care organization in the US, states that one in eight US insomnia clinicians practice with it, and reports more than 100,000 patients served.

Founding story

Co-founders George Wang and Edrei Chua both experienced chronic insomnia for years; one averaged under five hours of sleep a night for months and the other woke repeatedly at three or four in the morning. Told that waiting lists to see a sleep clinician commonly ran six to twelve months, they studied sleep therapy and trained as sleep therapists to treat themselves, then built a product around psychology-based treatment. Wang was previously a manager at McKinsey working with healthcare clients; Chua was previously an engineering lead at Google working across health and AI.

Business model

Stellar Sleep sells direct-to-consumer app subscriptions for its CBT-I program and provides clinician-delivered insomnia care through a nationwide specialist network that works with insurance. The app is purchased separately from clinical care and is described as HSA/FSA eligible. The company also maintains pages for clinician referrals and employer channels.

Subscription revenue from the consumer app, reported at $60 per month at the time of the 2024 seed announcement and listed at $188 per month for the program subscription in the company's help center, with cost varying by selected program and duration; care delivered through the clinician network is described as covered by insurance.

Traction

The company reports more than 100,000 patients served and claims that one in eight US insomnia clinicians practice with it. It reached $1 million in annual run rate within nine months of public launch and cites a clinical assessment of 500 users showing 50 percent greater effectiveness than sleeping pills. It also stated it had a year-long clinical study running with Harvard Medical School / Brigham & Women's Hospital funded by the State of Massachusetts and the US Department of Commerce, and lists user reviews from the App Store and Play Store dating from 2022 onward.

Latest developments

The company now describes itself as operating the largest network of insomnia clinicians in the US, with more than 100,000 patients served, and has introduced Rhythm, an in-house AI operations platform that automates administrative work for its clinicians. It offers app-based CBT-I purchased separately and HSA/FSA eligible, alongside insurance-covered specialist care, and states it received the Best Overall SleepTech Solution award at the 2024 MedTech Breakthrough Awards.