Has anyone had something similar to this? After sleeping fine from around 8 months, my 13 month old has suddenly started waking up around 10pm absolutely hysterical and taking 2,3,4 hours to settle back down. He goes to sleep fine at his bedtime, but in these wake-ups absolutely nothing calms him down, even co sleeping.
Has anyone had anything similar? I've put a light in his room, he's not hungry, I don't think he's in pain - not sure what to do really :(