Sleep training help!

Savannah • 25 | married 💍 | girl mommy

My 2 month old goes into 2 really deep five hour stretches back to back. Even moving her from crib to car seat, etc she does not wake for anything! Only trouble is these stretches go from 2pm-10pm. 🤦🏼‍♀️ any tips to get her to sleep at night, and end her night confusion.