If you've never really thought about it before, it can be hard to guesstimate exactly how much sleep your body needs. Here's everything you need to know about using iPhone's Bedtime mode - from getting started with the feature and analyzing your sleep results to learning how to turn off Bedtime mode and more. If your iPhone does have iOS 13 or earlier, however, Bedtime mode is ready to roll. We recommend experimenting until you find the sleep app that's right for you. If you have iOS 14 and up you can track your sleep using an Apple Watch and Apple's Sleep feature (located in the Health app) or download one of many sleep apps from the app store. If your iPhone is running on iOS 14 or later, you still have options to track your sleep, just not through Bedtime mode. In order to access and use iPhone's Bedtime mode you'll need to have a device that's running on iOS 13 or earlier. going to bed and waking up at the same time every day) is better for your health, iPhone's Bedtime mode helps make that goal easier to achieve. Working on the basis that being consistent with the amount of sleep you get (i.e. The iPhone's 'Bedtime mode' within the Clock app is an innovative and interesting feature.