Motorola Droid Razr :: Alarm Clock Didn't Go Off?

This morning was the second time in two months that the alarm clock on my phone didn't work. I've had my RAZR MAXX since the first week it was released, and I use it as my alarm clock every weekday. Most days it works just like it's supposed to, but this morning (and once probably a month ago), it never went off. When I unlocked the phone, the icon was in the Notification Bar as if it had been snoozed, but it had never gone off. My wife was already awake, and it was already about a half-hour past when it should have gone off, so I know I didn't press snooze.