Baby is 3.5 months. For the last week or so she’s been staying awake after our 2am feed and seems like she just wants to play. I’ve been reading a lot about this infamous 4 month sleep regression but idk, this doesn’t seem to be it. She’s not fussy or too difficult to put to bed. So then I read about “split night” and I think this is what’s going on? I also think it’s partly our fault because we never established the dark room habit (we keep one nightstand light on... honestly because we’ve been too lazy to buy a nightlight 😑 I think I’m going to get the Hatch Baby). Anyway, anyone have any insight or tips?