Sleep regression!

I thought i had qen through this last month and now i think this is the real deal. Baby gets up around 12 then around 4every morning to eat then wakes up after being put down. Qhen whe sees us to give her pacifier she gets all excited and pulls our arms and hands towards her. I donno if anyone ia eealing with this late. Lo will be 6 mo on thw 8th. Couls this be a regression? Or bad sleeping habits? Exausted!