This article explains how to snooze someone on Facebook.com and in the Facebook mobile app for iOS and Android.
How to Snooze Someone on Facebook
In cases where you want to mute posts from a particular friend or page without permanently unfollowing them, Facebook's "snooze" feature can help. This feature temporarily keeps posts from a person or page from appearing in your feed for 30 days, after which they will appear in your feed again.
When you snooze a person or a page, you remain a friend or a fan of the page. They will not receive a notification that you snoozed them, so they will never know.
Select the three dots in the top right corner of a friend's post or the page you want to snooze.