Sleep.ai has raised $5.3 million to expand partner integrations, grow its presence in Germany and other markets, and develop AI predictive health models. Treasure Coast Ventures led the round, with participation from the Harvard Business School Alumni Angels of Greater New York and other investors.
The Carlsbad, California-based company has collected and analyzed more than 1.1 billion hours of real-world sleep data, encompassing over 200 billion longitudinal data points.
Its platform combines smartphone measurements with information from approximately 800 wearable devices. Sleep.ai says it normalizes differences among devices to help partners deliver consistent insights regardless of the hardware users choose.
The company’s analysis found typical differences of 57 to 89 minutes between wearable platforms measuring the same sleep. Its software is intended to address that variability while also supporting users who do not own wearables.
Sleep.ai’s German program, Dein Schlaf, has enrolled 25,000 participants this year. The nationally reimbursed prevention program is available without a prescription to people with statutory health insurance and is offered with insurers including BARMER, AOK Niedersachsen, IKK Brandenburg und Berlin, and BERGISCHE Krankenkasse.
The company reported that two-thirds of program users who tracked their sleep for 36 nights improved on at least two objective measures compared with their first week. Those users slept approximately 30 minutes longer per night and improved sleep quality.
Sleep.ai also announced its 104th scientific publication, which examined using limited questionnaire data to screen for obstructive sleep apnea. The company positions its technology as a tool for identifying risk patterns and supporting personalized guidance.
Partners integrate the platform through application programming interfaces and software development kits. Sleep.ai plans to demonstrate those capabilities at HLTH USA in Las Vegas from November 15–18, 2026.
KEY QUOTES:
“With the Dein Schlaf app, the foundation isn’t general advice but individually measured data. That sets the app apart in the prevention market. Because every recommendation is based on actually measured sleep data, the program works where general tips fall flat.”
Dr. Frederike Escher-Brecht, Head Of Digital Product Development At BARMER
“We backed Sleep.ai because few companies have this depth of sleep data and science, and fewer still have turned it into a program that insurers and other organizations are happy to pay for. It is also a platform that isn’t tied to any one device. It works across phones and nearly 800 wearables, so its reach isn’t limited by how much hardware any one company can sell. That is what makes it scalable.”
Robert Padulo, Ph.D., Managing Partner Of Treasure Coast Ventures
“Sleep is where better health starts. When people sleep better, it shows up in their heart health, their weight, their mood and how well they manage chronic conditions. We leverage data and science, empowering organizations to integrate better sleep with the devices and apps those consumers already use, and we measure the difference. This funding helps us bring that to more partners and all the people they serve.”
Colin Lawlor, Founder And CEO Of Sleep.ai
