Good 'ol morning mockup.
An idea extending upon the previous concept for enabling Do Not Disturb, having it apply to more than just the lock screen.
When a user enables Do Not Disturb, their natural assumption is that they will no longer be disturbed. However, banner alerts still pop up with their normal intrusive fashion, vibrations and all. Considering the crescent is visible in the status bar whether the phone is locked or not, how is the user to naturally know that DND applies to the lock screen only? And more importantly, what is the user to do if they don't want to be disturbed while the device is actually in use, and not just locked?
This concept addresses that with non obtrusive alerts for when Do Not Disturbed is enabled.