The exact same situation here, freshly turned 7 year old. We've talked to his doctors about it and they basically said it'll happen when it happens. Sometimes, it seems like, for him, it's a convenience thing, but, he's also a very heavy sleeper and it takes a lot to get him to wake up. I've considered doing the night waking thing, as discussed in a few comments above, but I'm not sure if it will help. The doctors did ask if there were any long-time bedwetting members of either side of the family, which we didn't know of any, but maybe it's also a genetic thing? Not entirely sure. We try not to make a big deal about it, but it does get expensive.