Works as promised
We purchased this alarm because our 5 year old is such a heavy sleeper, and he was frequently wet through the night. During the first few nights, the alarm would wake me up and I would run to find that it was too late, he was already wet. But I would bring him to the bathroom anyway and did that consistently for a few nights. After that, the alarm started waking him up and he started going to the bathroom on his own. After about a week, he was completely dry through the night! He has even stopped wearing the alarm and is still dry through the night.