I usually have either the light outside, or the ability to flip a lot of lights on inside, and that lack made me all woozy. Plus, all I did was sit and read by candlelight for about three hours before waking Jess up. She had the same problem since I couldn't turn the lights on to create an artificial morning light.
*mutters* I hate it when the power goes out. I want an apartment on the hospital circuit when I move, dangit.