I've posted before about DS1 who is not going to sleep in the evenings and causing havoc. The situation had improved in that he had stopped screaming the house down but towards the end of last week its got worse again. He is literally trying not to go to sleep with the result that he's knackered.
I know a couple of people have mentioned melatonin as a possible solution and his school have also mentioned it. I am going to try and get an appt with his paed (which might take a while as he's been discharged) but I am wondering what (if any) the side-effects are.