I can mute/snooze notifications for a specified time period which is great but the feature is hidden in settings. You should add the snooze notifications button somewhere in the home screen, inbox screen or in a drop down on the profile menu. I had to google if the feature even existed before I found it which is not very UX friendly. Look at how Slack does it and copy it. Should be quick to add.
I like the idea. Do not forget to vote for your own post.