My 19 month old has been sleeping through the night for months, with the exception of a few nights due to teething the last 3 days now he has been horrible with going to sleep and staying asleep!! We usually would say goodnight lay him down and within minutes he would be out, lately I literally have to sleep in his toddler bed next to his crib until he's asleep, and when he wakes up in the middle of the night it's like hitting the reset button and I'm