I would STRONGLY vouch against it. My reasoning? It does not work. Many parents will do many things to get you to "stop" before they even think of diapers. Besides, doing this would put undue stress on them; they may know little to nothing about it and think there is something wrong with you. In most cases, this only spawns bad things, and the vast majority of people do not get diapers.
Also, to anyone who wants to wet their bed: I would also advise against it. Unless you are a adult and are willing to accept all consequences such as the cost of more diapers needed than usual, possible social persecution if word were to get out, and other things, consider yourself warned. If you are young and are doing it to get diapers... well... see the first paragraph. If you are doing it for the feeling, it's your choice, but be warned, more bad things will almost definitely come than good things. For all you know, if you were to be caught, you might wind up in a hospital being tested for a urinary tract infection, being subject to painful tests, unnecessary medication, and more.
So if you are still persistent about intentional wetting, go ahead, but beware. Don't say we didn't warn you.