Hi. The tapes work only if you believe that they will work. I know many persons who tried them with no result. I think that the key to OBES is to trust yourself with NO EXPECTATION, just when you go to bed have fun imagining that you are having OBES...I think that harder you try,harder it will be for you to achieve them. If you trust yourself with no EXPECTATION, you might realize one night that you are laying above your roof