Created as a part of this video.
The game already has useless messages like "You may not rest now; there are monsters nearby" and kind of useful messages like "You may not rest now; the bed is too far away," but what about the rest of the time? Why can't you rest then?
This mod solved that problem. If you ever right click anywhere that isn't a bed, the game will give you a helpful hint!
"You may not rest now; This is not a bed."