Hey there, I have a daughter of 2 who is dry in the day, I will do with her like I did with my other 2 kids.... that is when they no longer want to have a nappy at night they have to give up the night time milk. You cannot do the 2 together I'm afraid. My kids would have last milk at six, wee at 7 bed ... then at 8ish just before they fell to sleep another potty trip. It took about 4-6 weeks to be dry at night. But the last drink needs to go or it will always be this way with the wet nappy. I so believe you cannot potty train a sleeping child.. how can you? It will happen when there body has all the right conditions to make it happen. Good luck x