Intro to sleep schedules in Health on iPhone
To help you meet your sleep goals, you can use the Health app to schedule times for unwinding at the end of your day, getting to bed, and waking up. You can create multiple schedules—for example, one for weekdays and another for weekends.
Sleep mode
Sleep mode helps reduce distractions at bedtime. After you set a sleep schedule, Sleep mode simplifies your Lock Screen and turns on Do Not Disturb during your scheduled bedtime. Do Not Disturb silences notifications and calls and prevents them from lighting up the screen.
Note: When Do Not Disturb is on, you can allow calls from your emergency contacts, from various groups, or from everyone. See Set Do Not Disturb on iPhone.
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Wind down period
To help you relax before going to sleep, you can schedule Sleep mode to begin from 15 minutes to 3 hours before your bedtime by setting a wind down period.
If you enjoy activities like reading or listening to music before you go to sleep, you can select Wind Down Shortcuts for these activities. These shortcuts are available when iPhone is in Sleep mode.
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Wake up alarms
To help you wake up on time, you can select an alarm sound, a vibration, and a snooze option. Or you can choose to have no alarm at all.
Note: You can use the Clock app to set one-time and repeating alarms that don’t employ the Sleep mode screen, Do Not Disturb, or Wind Down shortcuts. Unlike sleep schedules in Health, Clock allows you to select songs for its alarms.
After you set up your first sleep schedule, you can set additional schedules. You can also modify, turn off, or remove any schedule you create.