My little boy was potty trained in the day but We were so anxious he’d have an accident at night so my little boy probably stayed in nappies well past when he could, probably wasted so many nappies because he was dry most nights! Do what feels right for you!
My little boy is the same, potty trained since Feb half term. The majority of nights he is dry but the odd occasion he isn’t so we have kept him in dry night pyjama pants for the time being!
If she’s done like 1 week dry then yeah take the plunge! My little boy was pretty good maybe 3 weeks after last summer and he’s been out of nappies since