At level 64 it is literally impossible for you to wake her up, unless you're actively moving her legs, which never seems to decrease in "intensity" regardless of your level.
I *did* die, while idling at 54 in order to get to that level, so 54 is reasonably safe, but not impossible to lose at. At 64, even Z awareness won't rise the bar. I could let the game run forever now and become whatever level I wanted.
*edit
lol I actually let it run so long it rolled over Negative and the count started over.