Quoting BoogB&Me: I'm curious to know how long it took some mothers to fully potty train after they got nap time down pat? ... [snip!] ... for us since we tend to eat dinner later. And then she goes to bed anywhere from 8-9. What could be a good solution for this?
My oldest, Ethan, was an extremely easy potty trainer and after a week of wearing undies during the day he just flat out refused to wear diapers at night. At that point he was probably waking up dry 50% of the time, but once he had undies on, that was it! He never has overnight accidents. I think he is a rarity, though.
We are the same as you...we eat around 6:00 and then he's down for bed between 7:30 and 8 so of course he is going to get a drink or two. We have never limited him and even allow him to have a drink right before bed, but usually he only takes a sip or two and that's it. It doesn't ever seem to affect him, so we don't limit it. I think it is more about the individual kid and their level of control. I have heard that often times it takes up to a year to night train a kid after they are day trained. It's just harder to pull yourself out of that slumber to get up to pee! Maybe give her another month or two and try again? Good luck!