Why would one be at a festival is one cared about sleep? I used to be able to stay up all night. Now I enjoy drifting off to sleep while being serenaded by the jam at the next site. I actually wake up when things get quiet.

The Mt. Airy festival essentially takes over the center of a very small town, but I don't recall hearing of complaints by the citizenry. Same for Glenville. The music goes on all night in the motel parking lot.

If you are located near people who don't want music at certains hours, and you care that they care, it's time to move the campground.