Quickly learn how to setup a schedule for the do not disturb function on your iPhone or iPad within iOS 12 Not sure why there is no sound. Looking into issue presently.
Apple first introduced Screen Time this summer as one of the key feature additions on iOS 12. By adding limits to specific apps, or your phone as a whole, Apple attempted to add a digital dose of self-control for those who need it most. People raved about the feature upon first hearing the news.