Snoozing Pull Requests
Snooze pull requests you want to tackle later to keep your inbox actionable. They'll automatically resurface when it's time.
Snooze
Using the action menu on the right, any pull request in your Needs Attention list can be "snoozed", whereby it will ne temporarily removed from the list. By default, pull requests are snoozed for 24 hours, at which point they will reappear in your Needs Attention list. Snoozed pull requests will still appear in your Incoming / Outgoing lists, but will now have a snoozed icon next to them.
Un-snooze
To un-snooze a pull request manually, locate it in your Incoming or Outgoing list and open the action menu for the pull request. You could also use the search box to locate the pull request if preferred. Once located, select the "Un-snooze" action for the pull request and it will return to your Needs Attention list if appropriate.