Cry it out question

Cass

So I’ve taken takingcarababies course and she mentions the sitback method. Tried it last night and had to do it twice but got baby to last another hour for her bottle. So my question is do I just do it the one time to get her back to sleep a little longer or do I keep doing it over and over again because that means mom is up that whole hour soothing her.

Also if I were to do cry it out to get baby to sleep and she finally falls asleep when she cries in the middle of the night do I let her cry again until she goes back to sleep or wake her up feed her and put her back down