My LO will be 15 weeks on Saturday and I'm thinking he's starting a wakeful period. For example, after pretty much only waking once a night for weeks, he woke up every hour last night. And I can't get him to eat for more than 5 minutes at a time during the day.
How long does this period last? I'm not at all tempted to sleep train, I'll feed or console him every time he wakes, but I'm curious about what to expect. Is it literally the entire fourth month? Two weeks? Three nights?