The Sleep.com app uses patented sonar technology that measures your breathing rate and body movement to accurately track your journey through the sleep cycle. Our app uses your smartphone’s speakers and microphone, so you don’t have to wear any tracking device. And because you place your phone on your bedside table before starting your sleep session, the app is completely contact-free, too.

Verified against Actigraphy and Polysomnography (PSG), the only two clinically accepted standards of measuring sleep, the app’s algorithm leverages more than 12 years of research and 6 million nights of sleep data. When we say the Sleep.com app is the most accurate way to track your sleep outside of a sleep lab, we’ve got the proof to back it up.