Big Health is a digital therapeutics company founded in 2010 and headquartered in San Francisco, California, with additional offices in London, United Kingdom. The company develops evidence-based digital therapeutic products for the treatment of mental health conditions, including its flagship products Sleepio for insomnia and Daylight for anxiety, both of which are clinically validated through randomized controlled trials and are available as prescription digital therapeutics. The firm's programs are delivered through mobile applications and web-based platforms and are designed to provide cognitive behavioral therapy techniques at scale without requiring a human therapist. The company partners with health systems, employers, and health plans to make its products available to large populations. The firm has raised venture capital funding from investors including Morningside Ventures, Octopus Ventures, and Kaiser Permanente Ventures.