I've recently night weaned my 1 year old. Everything was going great and we had a couple of nights where he slept until 6.30-7am. However the last few nights he’s been waking a 4am and won’t go back to sleep. Doesn’t matter if I leave him to cry or try and settle him. Has anyone else been through anything similar? If so did it resolve on its own or did you do anything to stop it from happening?