The Bedtime feature within the Clock app tracks your sleep and helps you make sure you’re getting enough.
When you set up the app for the first time, it’s going to ask you what time you want to get up. It will also ask you what days of the week you want your alarm to go off. Keep in mind, Bedtime will want you to wake up the same time every day (even weekends, but let’s be honest, most of us aren’t going to want to do this.)
Bedtime with then ask how much sleep you want to get. Before you answer, let’s look at how much sleep you should be getting (per the National Sleep Foundation).
Put in at least as much as is recommended for your age group, even if you don’t think you’ll always be able to get that much. Based on your entries, the app will recommend a bedtime for you. You can even set a pleasant little alarm tune (different than the standard iPhone alarm sounds) and alarm volume. Make sure to save your settings.
The app will notify you when it’s almost bedtime (you can set how far in advance this happens).
Bedtime will then track your sleeping hours. You won’t ever have to tell it when you’re going to bed or when you wake up—all of that will be deduced for you.
Perhaps the best part of Bedtime is that it integrates with your iPhone’s Health app. Your Health app will track the average amount of sleep you’re getting overall and allows you to see exactly how much you’re getting on a nightly basis. Note trends over time and even consider keeping a journal of caffeine intake, exercise habits, and evening routine to match behavior to bedtime.