My 4 1/2 month old baby has been a poor sleeper from the beginning. Even now, his naps are an hour at most. This hadn’t been a huge concern to me as he was sleeping decently through the night, only waking to nurse and then immediately back to sleep. However, now when he wakes, he screams and cries even after he is fed. It takes about an hour to calm him down enough to get him back to sleep and he’s waking about 4 times in the night. Basically no one in our house is getting any sleep recently. I’m sure this is having negative effects on him, as he fussed all through the day now too. I’ve tried focusing on his teething as he is chewing and drooling like crazy but nothing seems to work. Should I be concerned or is this just a temporary rough patch? Is this the time to sleep train? My 2 year old didn’t successfully sleep train until he was one and i don’t want to go that long again this time around.