Baby oversleeping at night and missing feeds

[Spockrates]

Ft mum, my 3 week old who drinks 4-5 ounces every 4 hours. Tends to sleep more than 4 hours at night during the day she’ll wake up exactly every 4 hours but at night she’ll go 5-6 hours before waking up isn’t that too much sleeping for her at 3 weeks old? I worry it will dehydrate her, she also doesn’t drink as much at night during the day it’s 4-5 ounces but at night it’s 2-3 ounces before she’s knocked out asleep again

•she'll wake up when she's hungry
•as long as she's putting on weight roughly in line with her centile she's fine.

We had the same with both of our children. Health visitor insisted on waking them to feed them, but neither of them would take a feed if woken up. We just kept an eye on their weight in the end and as long as they were gaining we didn't wake them.

@KnickerlessParsons the health visitor said she is growing on the 75th centil

As long she puts on weight so that she stays roughly on that path, then she's getting enough to eat.

I would never wake a baby at night if they were generally thriving. You wake them if they need fattening up or you’re worried they are not waking as they aren’t getting enough food so don’t have the energy. Neither of these sound the case.

milk ounces are worked out per 24 hours, not per feed.

I had to wake mine for feedings during the night 2hrly but he had huge drop in weight at that stage and had a tt making it hard to feed. When his weight started picking up we let him sleep until he woke for a feed and we just kept our schedule during the day and that worked for us. If your lo is having the right amount of wet and dirty nappies during the day and gaining well then I'd let her tell you when she's hungry at night and take the sleep while you can!

Try not to worry! My now 11month old was the same when he was a newborn. I was waking him to BF and the health visitor told me it was totally unnecessary! As most others have said on here bub will wake when hungry. As long as gaining weight and there are no other concerns.
In the meantime enjoy the sleep! :)

That sounds completely normal, OP.
You don't need to wake a sleeping baby for feeding. Not a healthy, full term baby.

I never woke mine at night and they did as yours does from about the same age.

As long as she's gaining weight and generally doing well then there's no need. Let them sleep. That's when a fair bit of their growing occurs.

Absolutely fine - ideal really! - as long as you are demand feeding during the day so they can catch up and get everything they need.

My kids were those mythical 'sleep through the whole night from 7-8 weeks' babies but they fed a LOT during the day to make up for it.