I just installed SleepFX, I really like it, although a little pricey compared to other apps. Anyway, I like the sound "TV", but I still get the original lock sound after the TV sound, the "click" sound. Can someone else with the app let me know if they get the same thing? I am not sure if the "click" is in the TV.aiff file or if it is playing the TV.aiff and the original lock.caf file both. I took the TV.aiff from the SleepFX program to my computer, but can't play an aiff with any software I have installed.