My son is 5, for the most part he sleeps okay but once in a while he’s stays awake all night just sat up in my bed looking around and talking to himself. Tonight has been one of those nights, I took him to the toilet at 1am because he needed to and he’s been awake ever since around 3am he started to behave in a way I’ve not seen before taking about their being angry snakes in my bedroom, I told him there was nothing there, half an hour later he’s screaming saying there’s turtles on the floor, at 4am I brought him down stairs because he was holding his legs in the air and wouldn’t put them down because he says there are animals crawling around, I brought him downstairs because he was in a state and he’s stripped himself off saying that he has flies on his back, it’s not 5am he’s calmed down now but he’s complaining of being itchy and flies every 10 minutes. I’m quite worried I’ve never seen him behave this way, could it be lack of sleep causing hallucinations, a bad dream?