Not weeing during the night

How old are they?

i would prompt her to go toilet at her last drink wake.

She’s still in nappies so I always change her before she goes to bed

If it’s dry when she wakes for a drink but leaking when she wakes i don’t know what the time frame is between both of those things but I’d consider changing the nappies or upping the nappy size in that case.
My 18 month old is in rascals brand nappies Size 4 and he stays dry from the last nappy change around 11pm to when he properly wakes in the morning at 6 or 7am.

Could be time to introduce a potty first thing for a morning wee. Or just be really on it with changing nappy as soon as that first wee is done.

Dry nappy overnight is usually a sign they're sleeping through.

Being dry at night is caused by a chemical release in the brain. It’s called Vasopressin. There’s no right or wrong time for it to happen, some children it doesn’t happen until they’re nearly 10! As long as she’s drinking and weeing enough during the day I’m sure she’s fine, head to the gp if you’re worried though.

My daughter has had dry nappies overnight since about 19/20 months also drinks water through the night, after looking online I think it’s hormonal