DS1 was dry a couple of months after his tenth birthday - this was after a couple of years of trying the different things and then a determined effort for about 6 weeks. DS1 was desperate to be dry in time to go on his school residential after a few problems on cub camps so we both worked really hard and succeeded.
First I tried to get him to drink more during the day - lots of water - no caffeine, no fizzy drinks and no blackcurrant squash - this was very hard work as he hates drinking!
Second no drinks after 6pm
Trying to do two wees before bed - forcing out that last wee
Saying 'I am in control of my bladder' before bed and trying to believe it
Taking two desmomelts to begin with
Wearing the alarm every night and no pyjama pants
Making sure he was really awake when the alarm went off - turning off the alarm himself - going to the bathroom to finish off the wee and getting changed into dry clothes
Making him strip and change his own bed.
It took just over a week to be consistently dry with the two desmomelts so then we went to one desmomelt. It took a couple of weeks before he was consistently dry with just one and then we went to no tablets. Again this took a couple more weeks before he was consistently dry and then we removed the alarm. Unfortunately he went back to wetting so we put the alarm back on for a couple of days and tried again.
We did this all over the summer holidays when it did not matter if he was tired and there was more opportunities to make him drink and to hang the washing out on the line. We were all shattered by being woken by the incredibly loud alarm but he was thrilled when he was dry on school residential. He did take the tablets and pyjama pants with him and I gave him the control over whether he used them but he didn't!