It's better than nothing, but it might not be the advanced sleep tracking that the best smartwatches and the best fitness bands provide - and not the sleep monitoring that's rumored to be coming to Apple Watches in the future.
What's even more interesting is that the description seems to have been changed now because what's live on the App Store no longer shows the reference to the Apple Watch Sleep app. One code string noted users could track their sleep and "get woken up silently" by wearing their Apple Watch to bed. The app is built to assist its users in tallying up their sleep patterns and also work as their alarm clock.
Apple has inadvertently confirmed the widespread rumors of it working on new sleep tracking features for Apple Watch, with an App Store listing for the Alarms app revealing Apple's as-yet unreleased "Sleep" app.
At some point since The Verge noticed the potential Sleep app, Apple removed any reference to the app.
As you can see in the screenshot of the Alarms app below, Apple is directly referring to the Sleep app.
When Apple unveiled the Apple Watch 5, it did so with a reel of at-home testimonies celebrating how the health features on previous models have saved lives. This could allow the new Sleep app to provide data on quality of sleep, rather than merely quantity.
Plus, there will be an option to use a silent alarm that only vibrates the Apple Watch, as well as the choice to automatically enable Do Not Disturb on both the companion iPhone and the Watch itself when the user heads to bed, according to 9to5Mac. Apple could of course add it as a software update at a later date, however.