T.T.
When ever we would be out of town on weekends it did throw our daughter off schedule for about a week and then back to the same routine.
Every child is different...my baby woke up every two hours for feedings. Then by her fifth month every 2 - 3, by seventh month every 3 - 4 hours, around her 9th month she would wake up only once a night to feed. By her 1st year she slept through the night and now at 19 months she only wakes up at night when she is teething or going through a growth spurt.
She was both breast and bottle fed until 6 months and then only bottle. I did feed her every time she woke up...against my ped's reccomendations because I knew she was hungry...I would go in change her diaper and feed her. At 6 months I stoped picking her up and fed her in the crib until she fell asleep. She would not take a passy and the Ferber method did not work with her. I just went with the flow...
Now she sleeps from 9pm - 8am with no problems.
Good luck to you!!!