Well, I have been running this application for a few weeks now, apart from when I was in Byron Bay. It proports to show your sleep patterns from the vibrations of the bed. I’m not sure how it would go in a bed with two or more people. The main benefit of this is that it should wake you up when you are in a shallow sleep before you need to get up. This is different to a normal alarm that just goes off at a particular time. Well, after over 10 days of usage, I have found that it only woke me up twice in this manner. Often this is becuase I am up before it would think to set off the alarm. It is not very good at determining when I am awake. I’d say it gets it right about 50% of the time.