This one really only applies to infants up through roughly 4-6 months old. Newborns will wake and need to eat every couple of hours during the night, but this should lessen over the first few months and the stretches of sleep between feeds should begin to lengthen. Depending on certain factors, some babies are ready to sleep through the night at 4 months old, while others may take closer to 7 months to reach this milestone.
If a baby is used to getting a bottle or some other kind of sleep prop at a specific time in the night, you better believe that baby will develop a habit of waking at that same time every night for that prop. It could be a feed or another kind of prop, but they will certainly continue to wake and expect it.
Sleep is a complicated thing, and there is never a one-size-fits-all answer. That’s why parents benefit so much from working with sleep consultants instead of trying to go it alone. Sleep training is HARD and requires structure and consistency. You don’t have to do it alone!