Here is a different perspective on bedwetting.

Our son was very perturbed by his bedwetting and I did a lot of  
research on this topic.   One of the interesting bits of information  
I discovered was that a lot of bedwetters have smaller than normal  
bladders and lower than normal sphincter control.

I told my son that we believed that bedwetting is generally something  
that resolves itself with physical maturation but if he wished we  
could do some of the exercises I discovered to increase his bladder  
capacity and sphincter control.

Life became hectic and I didn't do anything about it but little did I  
know that my 4.5 year old had taken this information to heart and was  
doing the exercises on his own.  It took him about 4 weeks and all  
bedwetting ceased. This was a child who was going through two Good  
Nites a night.

In case you are interested this is what DS did:

To improve sphincter control he basically did the male version of  
Kegel exercises.  He stopped and started his urine stream every time  
he urinated.

To increase the capacity of his bladder he spent afternoons drinking  
copious amounts of water and then when he felt to the need to urinate  
he put off urinating. Initially he only managed the count of ten. He  
slowly increased the length of time he waited until he was holding it  
in for long periods.

A really good benefit for me is that we no longer have to plan  
errands around DS's bladder.  Before he started this he felt the need  
to urinate about twice an hour, now he can hold it in for much longer  
periods of time.

Sherene in Norfolk