If baby oversleeps by one hour does that mean they need an extra ounce of milk???

[Spockrates]

I’m a ft mum and really worried because my baby overslept by one hour and I didn’t realise because I was asleep too and I woke up and checked the time it was 9:30 pm and she was due her feed at 8:30pm which means she slept for 5hrs she is usually on 4oz every 4hrs, I made her up a 5oz bottle and she won’t take the last ounce she has only drank 4oz and has gone asleep and won’t open her mouth for the bottle now I am worried she will get dehydrated pls help

Don't panic, she'll be fine. She's had what she needed and if she's happy with that and back to sleep then that's fine. Next time she wakes / you wake her just offer her a little more again but babies do tend to fluctuate each day how much they drink.

No. Just enjoy the sleep. Sometimes they have hungry days and sometimes they don't. They don't need more in a bottle but might ask for another bottle sooner than 4 hours if hungry. Just be led by them rather than looking at the clock. Keep up the good work x

They'll only take what they need. Trouble is if you start doing this you could become obsessed with the time. If baby sleep 1.5 hours more would you think you'd have to give 1.5oz more- you might end up making a rod for your own back.
if baby wants more you can also make a fresh bottle.

it would be wonderful if baby kept to the 4hour schedule!

Babies take what they need. There's no need to be so regimented in what you offer. How do you think breast feeding mothers cope? They can't measure what their babies are taking.