How to use the Do not disturb feature on your Samsung Galaxy smartphone

Do not disturb
Do not disturb allows you to block sounds and notifications while this mode is turned
on. You can also specify exceptions for people, apps, and alarms. You can also set a
schedule for recurring events like sleep or meetings.
◌ From Settings, tap Notifications > Do not disturb and configure the following:

• Do not disturb: Enable Do not disturb to block sounds and notifications.
• For how long?: Choose a default duration for Do not disturb mode when you
  enable it manually.
  Schedule
• Sleeping: Customize a schedule for Do not disturb mode while you are
  sleeping.
• Add schedule: Create a new schedule to configure the days and times to
  regularly put your device in Do not disturb mode.
  Allowed during Do not disturb
• Calls and messages: Tap to allow Do not disturb exceptions.
• App notifications: Add apps that you would like to receive notifications from in
  Do not disturb mode. Call, message, and conversation notifications will still
  reach you even if you don’t allow the associated apps.
• Alarms and sounds: Enable sounds and vibrations for alarms, events, and
  reminders while Do not disturb mode is active.
• Hide notifications: Customize options to hide notifications.