2nd floor kids above me are constantly running, falling and jump continuously. Any suggestions? I am afraid to tell the hotelier or they may cause...

I am afraid to tell the hotelier or they may cause more problems. They will know I reported them.
Answers:    shoot em
MOVE. There is not much you can do going on for it. You will get a LAME excuse that they are JUST CHILDREN and here is nothing they will do.