[ Netzach?? Why is this backfiring on him though, time for plan B: put on his mildly affronted teacher voice and list out all the reasons why sleeping on the floor is a Bad Idea. ]

It could be uncomfortable for anyone trying to navigate across the rooftop. Why not take a nap over on one of those beanbag chairs over there? That way you won't be disturbed [ by concerned citizens like him ] and you won't be disturbing anyone else in the process.