She came to me this morning and said she had a wee before bed and as soon as she got up but has wet the bed. I told her it didn't matter and to have breakfast and then a shower. She thinks she needs to go back in to nappies. I am happy to buy pull ups but is this the right thing to do? She is 7.5 and not a very heavy sleeper. She says she isn't worried about anything. I suggested she didn't have a bedtime drink of water and if she drank enough in the day she wouldn't need it, but am not sure if that is right. I am grateful for any advice.