My 19mth old boy was sleeping fine - woke up occasionally in the night but then went straight back to sleep when we lay him back down in his cot. Then we moved house and for the last month we have been up and down all night with him. He is in a separate room (as he was previously), and he wakes up and screams until we go in. He is sometimes only half awake and a stroke of the head sends him straight back to sleep. Other times he is awake but goes back to sleep when we lay him back down. But it's happening ever few hours every night. He doesn't sleep much (if at all) during the day. We are really struggling and starting to feel unwell with the lack of sleep. Does anyone have any advice?