This is a pretty old thread, but I'm bumping it instead of making a new thread. I have exactly the same problem as in the OP, I will set 2 different alarms, one at 6.25, one at 6.30, and I still cannot wake up properly as the alarm keeps turning off after a minute. Hoping someone knows of a way to get it ringing constantly, or a new alarm application... before I have to buy a bedside alarm clock just for this purpose.