Alarm Clock or Alarm Conscience?

I use the alarm clock on my mobile phone to wake me up in the mornings. I put it in the wardrobe, so I have to get out of bed to turn it off - that way I'm more likely to stay up. I try to do it fairly quickly, so the noise doesn't wake Rob up.

Rob's away at the moment, so this morning I let the alarm go and go and go. And I didn't get out of bed. Oops.