Get to grips with Do Not Disturb
Activate Do Not Disturb
Open Settings and tap Do Not Disturb. Use the topmost switch to turn on the feature; on most iOS devices, a crescent moon is shown in the status bar when Do Not Disturb is active.
Schedule quiet time
You can turn on Do Not Disturb from Control Centre by tapping the moon icon. You can also have it activate automatically during certain hours: turn on “Scheduled” and tap the From/To box.
Turn it on
A pair of rotating dials will appear, on which you can swipe up or down to set an hour and minute. The From row will be selected already; use the dials to set the time when Do Not Disturb will turn itself on automatically.
Turn it off
Tap the To row and set the time that you want Do Not Disturb to switch off. At that time, your device will return to normal, with your usual notifications and sounds (change these in Settings > Notifications).
Go back to the top level of Do Not Disturb’s settings. Under Silence, there’s a choice: have Do Not Disturb silence all alerts, or only when your device is locked; so, they’ll play when your attention is on screen.
You may have some people who you always need to be able to get through. Turn on Repeated Calls to allow a second call from the same person to get through if it comes within three minutes of the first one.