Help… my son is 29months. He has been an amazing sleeper ever since he was 5months old. Never had to sleep train him. It happened organically. Always slept in his room from the very beginning. Until recently, he never woke up before 8am. Then suddenly, the last 2 weeks, he’s been waking up screaming in the middle of the night. Sometimes 2-3 times a night and then at 6:20am he’s wide awake. Not sure what is going on ? Is it just a phase ?