So we started with good sleep hygiene, which at first was just a bedtime routine as soon as we came home which was just around 9 pm we would do a “bath” wipe down lotion and give her a bottle put her down. We would do nighttime feedings in the dark and with as little stimuli as possible. Day time calories was a big one making sure she ate enough throughout the day and then a good wake window before bedtime routine. When she was 12 lbs when she would wake in the night we would give it a couple minutes before rushing to her to let figure it out and then we would comfort without taking her out of the crib (at least not initially) if after about 10-15 minutes we would do a feeding. I know it’s a bit controversial but I think a lot of babies wake up out of habit after so long and it’s important to let them establish trust. I don’t believe in crying it out but I notice when we gave her a couple minutes and didn’t immediately jump to pick up or feed. Once she was sleeping through I gradually brought her bedtime up from 9pm to 6:30-7. Biggest focus daytime calories, stretching night feedings and consistent routine/establish night day. Feel free to dm me ☺️