On another note, I find I wake up when it gets light, no matter how much sleep I've had, so I sleep better in the winter than the summer.
Weel, that is a hard thing to do here as where I am in the wniter, the sun rises at about 10am and sets at about 3 and in the summer, sets around 1100 and rises at 3 am :P
The siesta life would work well for me and it is kind of what I try. After work, I try to grab 15-30 minutes.
Oh man, I'm glad I don't live in Finland. Or maybe, if I did, I'd just learn to black out every window in a room. :)