DD has just turned 4. She has been potty trained reliably in the day for nearly 2 years but still wears a nappy or pull ups at night.
She tends to be soaking in the morning but I'm pretty sure she does a wee when she wakes up and she sometimes wees in her nappy before she goes to sleep (she gets a major telling off if I catch her doing this). So I think it's mostly laziness/habit - not that she is weeing whilst asleep.
So I was hopeful that we could have a go without - I've set her bed up with a couple of waterproof sheets and put a potty in her room but she gets really upset at the idea. I've told her it doesn't matter if she has an accident but she doesn't want to try.
I know some children aren't dry at night at this age but I don't like the idea of her starting school in September still wearing a nappy at night.