Hi, this made me laugh, because I am exactly the same with the alarm clock, setting the clock fast etc, even setting it to odd times like 37 mins fast or something, trying to kid myself that I will forget how fast it is and therefore panic myself into getting up! Mainly I have to get up around 8am, but sometimes I work an early and need to get up for 6.15 (or 6.47and 5 seconds) someone told me that before you put your head on the pillow, if you pat your head slowly but firmly and say out loud 1,2,3,4,5 etc up to the time you want to wake, then even without an alarm you will wake up, fairly alert at this time. I have done this on the occasions I am on an early and so far it seems to work, but it could just be me in more of a panic, I'd definately try it for your challenge though, cos it has worked.