i check the website and it's looks like those silly websites that promise more then what they give, then set a very high price and try to give reason why the price is high. also the way they explained how they teached kids to stop bed wetting is the same method, i believe which is just a habit, if you pee elsewhere other than the toilet it will become a habit, then if you pee with out much thought long enough you will wet the bed while asleep. habits don't happen overnight, even a half developed habits can revert if forgot about for few days. also potty training first starts when toddlers are awake, then when they no longer wet themselves in the day they will also not wet themselves when asleep or atleast not as much they used to.