Yall my LO is almost 4 months old. I feel like over a week ago she started sleep regression and I don't know how to get her back on a normal schedule. We just changed her bed from a bassinet to a pack and play [I did research and asked her pediatrician and got the go ahead for it] she's been taking longer naps and sleeping longer at night especially with nightly warm baths around 8-9pm. She'll wake up from midnight to 1am then be up till 2-3am sometimes 4am then sleeps till 9-11am I know they sleep 10-12 hours waking up for 1-2 feedings but I'm trying to make sure she falls back to sleep after the feeds and it's a struggle. But it changes day by day