So wait... 20 straight days without sunlight is
bad for me?
One of the amenities at my apartment complex' clubhouse is a tanning bed. I initially thought it was a silly idea, but now I go for 5 minutes, 2 - 3 times/week during the winter. I don't actually lay down in it; I sit in the room with the bed open and the lamps on, just to get some "sun" exposure. It really does help.