Great idea
I was only able to put one zombie asleep at a time and that only when I realized that you can left-click while holding right-click
Viewing post in Grave Knight jam comments
It was a mistake that we later realized most players didn't actually know this trick due to the lack of information, and the difficulty of the game didn't help either lol. At some point, we tried to make it so that you only need to stand near the grave to put a blanket on them, but due to a bug, our coder didn't make the change in time, so we have to stick with this