You don't need a separate sleep timer app. There's a great one built into your iPhone. Try it out for yourself with a few easy steps. Taylor Martin CNET Contributor Taylor Martin has covered ...

Apple Watch Sleep Tracking has a new Sleep Score feature that gives you an overall number rating your sleep. It considers ...

Having trouble catching those Zs? Instead of tossing and turning and eventually resorting to scrolling through your phone at night, you can transform your iPhone into a sleep companion that improves ...

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Apple's built-in Sleep app is free and tracks sleep duration, but there are other paid apps that have even more sleep tracking features.