Ghost?????

I just sent this text to my mom. My son is 3. This is not a troll, I’m genuinely curious to know if this is crazy?????

“I heard three loud bangs on the wall and then Brandon started to yell and cry for me so I went in there and he was just laying there crying so I held him and asked him what happened and he wouldn't answer me so I asked him if he wanted to lay with me and he said yes so he's just laying across me .... “

He is literally kicking and punching in his sleep right now as he’s laying next to me!!!!! What do I do?!?! He naturally puts his feet on the wall during the day…