Ladies, when I spoke to my doctor about this same thing, she said night wetting is an involuntary release of the bladder. No amount of limiting drinks before bed or taking them at a certain time in the night while they're asleep will help. By about age 7 she recommended getting one of those alarms (a friend of mine had success with one of these), so suggested giving them as much time to get it on their own as possible.

I think by age 7 its more likely a time where kids want to stay over for sleepovers and that's why that age is a good time to step in, although not necessary I suppose.

I'm not going to push it with DS. Doc said let him get through pre primary and maybe do something next year.