Actually I don't really care what time u put ur child to sleep because I struggle to put mine to sleep to the proper standards. Whatever time ur child sleeps so be it. Just try to have a routine of abt that hour.
As for the feeding and the sleeping, 5 hrs straight is considered sttn alrdy and until ur child knows how'd to self soothe, it will be difficult to sleep so long.
Some babies will drink more at night, if she does good, if not it's ok. At abt 4 months, there's a chance of sleep regression too so sleeping patterns and waking will be a bit irregular - some babies have a few sleep regression periods some lesser - u can google
Generally at 6 months onwards they can sleep 5 or more straight. Most of the time it's because they have started solids and the dinner meal keep them satisfied for a longer period.
My 9'months old always sleep 9/10 plus. Had sleep regression at 4+ months. Recently then can sleep 5-6 hrs at a stretch.
If it works well w u, u can try to give pacifier for her to self sooth to sleep in the middle of the night instead of feeding
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Mother of 1 playful little heartbreaker