Our oldest, now 23 years old, was such a sound sleeper. We used the alarm and did medication. (Sorry but I can't remember what.) For the first WEEK all the alarm did was wake me up. My son was so out of it, he didn't even know what was happening. The alarm was SO loud, but it didn't really wake him up.
The second week he would wake up, but twirl around in his room, totally not knowing what was going on. (Yes this was heartbreaking to be a part of.)
The third week he woke up, by HIMSELF, and went to the bathroom! Unfortunately he forgot to lift the lid. (I was still thrilled.)
The fourth week he woke up, turned off the alarm, went to the bathroom (lifting the lid) and took himself back to bed. Done!!!
And truly that was it. Bed wetting was over. We talked it all through ahead of time. He wanted to end the bed wetting. It was very traumatizing to him. Yes the alarm was hard on him, but I think it would have been harder to get older and older and still have to wait for all of this to end.
My father was a bed wetter. His older son, from his first marriage, still wet the bed at 17 years old! So everyone does NOT grow out of this.