The Apple Watch doesn’t come with its own sleep tracking app, no matter which model you buy. Nor does Apple advertise “sleep tracking” as one of its features. The reason is battery life. Apple’s unspoken assumption is that you will be recharging your Apple Watch’s “all day” battery overnight.
Of course, if you want your Apple Watch to track your sleep — you can. There are plenty of third-party apps that track sleep that you can download. These apps are able to track how long and how well you sleep. They can also give you a detailed chart of your sleeping patterns over time. The catch is that you’re going to either want to charge your Apple Watch a little bit during the day or a little bit right before bed. According to Apple, an hour-and-a-half charge will take any of the Apple Watch from about zero to 80-percent battery; while an extra half-an-hour is needed to charge that extra 20 percent.
If you’re an Apple Watch wearer and sleep tracking matters to you, these are the apps you should try out.
Best Overall: This is most popular app for sleep tracking because it looks and works very similarly to the Activity app that’s already on your Apple Watch — there are rings and everything. It tracks sleep duration, sleep quality and “readiness,” the latter basically attempting to rate how well your sleep prepared you or the forthcoming day. And it integrates nicely with Apple Health.
Best Free: The biggest upside that Sleep++ has over some of the other sleep tracking apps, particularly AutoSleep, is that it’s free. Other than that, it has many of the same features, such as automatic sleep tracking (it detects exactly when you fall asleep) and shows you a bunch of data about your night’s sleep.
Honorable Mention: Pillow is a well-reviewed app that, again, has many of the popular features like automatic sleep tracking and in-depth sleep analysis charts. It has a “smart alarm clock,” where it wakes you up at the optimal point in your sleep cycle for maximum morning refreshment. The app can also record audio (like snores and random outbursts) during the night and play it back for you, but that requires you to pay a subscription fee so you’ll have to want it really bad.
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