My just turned 16 week old LO has been waking up much more at night for around 4 weeks now. Last night it was every hour. He doesn't need feeding every time, just resettling. How long does this last?? I feel so intimidated by sleep training, but it's what I read lots do at this point. 😔 If we wait it out does it improve soon? Sounds like the regression maybe? Help 😔