Know when the next system alarm is going to be and act on it in Tasker, with AutoAlarm! You could make a pre-alarm task like the very cool one Andreas Ødegård describes in his SLEEP MODE here: http://goo.gl/rRw0I. He uses it to create his own personal sunrise by making his room light up gradually before the actual alarm fires. (WARNING: YOU MUST HAVE TASKER INSTALLED FOR THIS APP TO BE OF ANY USE: AutoAlarm will not show up on your homescreen or app drawer. It is only usable as a plugin in Tas