Oh wow, that totally sucks. In the future you might want to invest in a battery powered air pump. At least you can get a few more hours of solid sleep before worrying (or changing the battery).
http://www.jlaquatics.com/phpstore/s...uct_ID=ap-hbat
I've used mine up to 3 hours before (never have had power out for too long here) on a 90 gallon tank.