How to prepare to return to work if baby is on her own schedule?

Kristy

Sometimes my 8 week old goes on the clock 3-4 hours between feeds and naps in between... other days/ nights she will have hours long stretches of being awake and asleep. I go back to work in 4 weeks. How do you working mamas manage to get enough sleep at night then get up and ready for work in the morning if baby is not on a schedule ? Like I can’t imagine what time to even get up because it all depends when baby last ate and if she will even let me put her down long enough to shower and get out the door ?! I’m a FTM lol