Mine is 12 weeks this Saturday.
He started to make it through the night at about 10 weeks, usually... Last night he woke me up at 5:45am. Generally it seems that he will make it 3 of 4 nights without needing to go out. Our hours are about 10pm to 7am.
He didn't seem to be completely empting his bladder when he was outside (distractions), so I started to treat him when it seems he did. Now he runs out and empties while looking at me to be sure I saw. Not sure if it actually helped, but it's pretty cute.
Hang in there! Glad to see you are restricting water.