Random is truly a difficult problem to solve, if no pattern of failure can be detected. It sounds as though the alarm may be at fault. Is the alarm on and set to radio, CD, or beep? If radio, that could pinpoint the problem. If you have another, mechanical alarm, use it for a couple nights with the Bose Wave alarm off. If the Bose still acts up, then it isn't the alarm. Try unplugging the unit, waiting at least 30 seconds, and plugging it back in, which will cause you to need to reset the alarm. Alternately, remove the Bose cover and blow out dust. I find the Bose susceptible to dust as a cause of malfunction, which may point to the cause being the compact design of the unit. Good luck.
Bose Wave Music...
on Jan 29, 2014