I used it two years ago for my 10 yr. old son. He wet the bed every night. Within 1 week he wasn't wetting the bed every night. By 2 - 3 he had stopped completely. He hasn't wet the bed in two years. We made him go 30 days without wetting the bed before he didn't have to wear the alarm anymore. Also, the urologist told me to make him change the sheets. I would help, but he had to help, too. The alarm still works fine. I am using it for my other son who occassionally wets the bed. I have also reccommeded this to another mom who also had success with it. Good luck.