5 Year Old Nighttime Potty Regression.

Give her her water back. That's actually not relevant to the situation.

I would buy some pull-ups and leave her be. She isn't doing anything wrong or anything to cause this. Sometimes when kids are stressed (new baby & starting kindergarten = major stress for a 5 year old) they will wet the bed. Pull-up will save you laundry. They will also allow both of you to get a good night's sleep. Getting a good night's sleep just might lower her stress level and help her to stay dry at night sooner :-). Just a thought.

Pullups are a wonderful thing!
And they can save you a lot of laundry.
Our son was day trained at 3 1/2 but he was 7 1/2 before he could make it through the night and still be dry in the morning.
When he woke up dry for 2 weeks in a row THEN we were finally done with pullups.
But it was no fuss to use them at all.

My 5 year old son wears pull-ups at night. I've taken his water cup as well, I feel badly because he really wants to stop. He gets a little upset when I ask him about it so I don't make a big deal or anything and just change his sheets when needed. I think he just gets into such a deep sleep. He never has accidents during the day. The pediatrician did not seem concerned. I think it's pretty common actually, I have a couple of friends whose 6/7 year old boys still need a pull-up at night. I would just mention it to the pediatrician since it's something new.

She might be going through a growth spurt and her bladder needs to catch up. Or, she might be drinking a LOT just before bed. I mean, I can wake up needing to go if I drink an entire glass of water just before bed. Even if I go to the bathroom--it just simply doesn't pass through your system fast enough to eliminate it that soon after drinking it.

So, push liquids about an hour before bed. Don't restrict them. About 20 minutes before, then be aware of what she drinks, and only offer her "one last sip" before she goes to sleep. But DO have her use the potty twice... once when getting ready for bed/brushing teeth, etc, and then after you've snuggled and had the bedtime story, have her go one more time. You wait in her room and then tuck her in after that.

I would definitely mention it to her doctor, since it is new behavior, not a child who just never was able to stay dry over night. (and that is very common, I had one like that, and one that wasn't... it's all individual to the child-more physically than anything else).
Also, if she truly didn't want to get up and was aware before she wet the bed, ask if putting a nightlight in the bathroom (or something else) would help. I agree with the earlier poster though, that it probably wasn't the case. She probably woke herself during the process and was already wet. I can even remember dreaming as a child that I was in the bathroom using the potty, only to wake up in my bed wet.
If she has a lot on her mind, her dreams might be very vivid. Or it could be a growth issue. Or both. Or something else entirely.

Just continue to not make a huge deal out of it, mention it to the doc, and be sure that she knows what to do when it happens (come wake you, or put her sheets in the bathtub, or wash up and get fresh PJs and undies and a blanket and then take the sofa .... whatever you want her to do or think she can handle doing in the middle of the night).

I found so much familiar in your post. My son is now 8, but we have had this issue off and on for the last several years. He has been through his parents divorcing, 2 moves, a new step dad, and now a new baby on the way (not to mention school starting). AND the last time I asked him about it, he said, "I'm just so warm and cozy in my bed I don't want to get up!" I have to say I was a little disappointed in that response - if he is awake enough to know he is warm and cozy, he's awake enough to remember he HAS to get up to pee!! But mine is 8 so it's a little different. And in the end me getting on to him for that answer didn't help anything.

If there is a "way" to get this to stop, obviously I don't know what it is. He will have good periods where he is dry for a few months, then his dad will visit (or drop off the face of the earth, depends on the season) and it will start again. I've just accepted that Good Nights inserts are just a part of our life for now. And I've tried everything, even (don't roast me, Mamapedia) getting on to him about it.

There are lots of things that cause this. To me it seems like any time there is an upheaval in my son's routine is when it hits. Luckily they DO make nighttime protection, so we can adjust. Good luck, and try not to take it personally or get frustrated with her. If this is the worst that she displays with a new baby coming, you're doing great.

She could be rushing her last pee before bed some nights. This happened to my little one. We had a couple of accidents and our pediatrician suggested the go pee, read a story, and then go have a second pee. In our case, it did the trick. I never limited drinks and that sort of thing - it was purely she went through a phase (around same year as yours) where she just didn't empty her bladder fully.

Around the same time, we'd also notice she'd go pee in the daytime and sometimes say "Oh ...I think there's a bit more". This was around the same time as the night accidents. She outgrew it. In our case, there wasn't any kind of behavioral reason for it.

Sounds like you are doing the right thing - not making a big deal about it. I'm sure your pediatrician will have suggestions. Good luck :)