My 6.5 year old son had only ever had 3 or 4 dry nights ever! We tried many other methods, everything anyone suggested, and nothing worked. He was getting frustrated because his younger brother had been night trained since he turned 3. I happened to see something online when I was researching more, and I was a little skeptical and wasn’t sure it would be worth the cost. When I told him about the alarm he was excited and couldn’t wait for it to come so we could start. The first few nights the alarm woke him up, but he was wet. Then the alarm would go off at night and stop him from actually peeing and he would go pee in the toilet. After 2 weeks the alarm wasn’t going off anymore and he was holding it all night. A month after we started he was no longer using the alarm, and it’s now been 2 months completely dry every night with no alarm!! Definitely worth the cost, as who knows how long I would have still been buying pull-ups.