To quickly silence your iPad, whether you’re going to dinner or going to sleep, turn on Do Not Disturb. It silences notifications and calls and prevents them from lighting up the screen.
Turn on Do Not Disturb
Ask Siri. Say something like: “Turn on Do Not Disturb.” Learn how to ask Siri.
You can also open Control Center, then tap to turn on Do Not Disturb.
When Do Not Disturb is on, appears in the status bar.
To choose an ending time for Do Not Disturb, touch and hold in Control Center, then tap an option, such as “For 1 hour,” or “Until the end of this event.”
You can also tap Schedule, turn on Scheduled, then set beginning and ending times.
Allow calls when Do Not Disturb is on
Go to Settings > Do Not Disturb.
Do any of the following:
Tap Allow Calls From: To allow incoming FaceTime and Wi-Fi calls from selected groups.
Turn on Repeated Calls: To allow repeated calls from the same caller to come through for emergencies.
Allow calls from emergency contacts when Do Not Disturb is on
You can allow FaceTime and Wi-Fi calls and messages from emergency contacts when Do Not Disturb is on.
Open Contacts .
Select a contact, then tap Edit.
Tap Ringtone or Text Tone, then turn on Emergency Bypass.
Schedule quiet hours
Go to Settings > Do Not Disturb.
Turn on Scheduled, then set the start time and end time for quiet hours.
Choose when Do Not Disturb silences iPad
You can choose whether Do Not Disturb silences iPad only when it’s locked, or even when it’s unlocked.
Go to Settings > Do Not Disturb.
Do one of the following:
Silence iPad any time Do Not Disturb is on: Tap Always.
Silence iPad only when it’s locked: Tap While iPad is locked.
Information sourced from: https://support.apple.com/en-au/guide/ipad/set-do-not-disturb-ipadeb91a1c3/ios