Apple has acquired an app and sleep monitoring device called Beddit.
Beddit has retained a customer support contact on its website, suggesting that the customer experience will not change.
Sleep-tracking is an intriguing potential health application for the Apple Watch, as it explores new use-cases in the health and wellness market. An estimated 50 to 70 million US adults have sleep or wakefulness disorders, according to the CDC.
The company brought on sleep researcher Rob Raymann to its health team more than three years ago, according to LinkedIn.
Watch: How high can Apple shares rise?