DS has fallen asleep on his own and slept through the night for many months now. Starting Saturday night he just won't sleep. He goes to bed okay then after a few hours wakes up screaming. If we pick him up he stops crying immediately. If we put him in our laps he will sit there quietly and play with his spare paci for a long time. After probably an hour he will go to sleep. If we try to move him back to his crib he wakes up and starts screaming again. We have tried CIO because that is how we sleep trained the first time but he just stands in his crib and cries the entire hour. I thought it might be teething because he is getting in his sixth tooth but this has not happened with the previous ones and giving him medicine seems to make no difference. I just don't know what to do. We all need some sleep. Oh, and cosleeping is not an option. TIA for your advice.
Re: Night waking