Adzeth: Wasn't there some study that said if you sleep too little, you'll die younger?
keeveek: 8 hours a day is not too little. In fact, it's 2 hours above minimum.
In fact, research of European Journalof Neurology shows, that these who sleep too much are at twice higher risk of getting memory loss, dementia and Alzheimer. (it's for those who sleep more than 9 hours a day)
Ah, you were talking about sleeping 8 hours a day instead of, say, 10. I usually sleep around 7, and going 2-3 hours below that would be bad. Mostly, though, I was just trying to say that you can't live doubly long just by forsaking the ways of sleeping (and a nitpicker would point out that you're actually alive even when sleeping).
There's also the quality of the hours you're awake to consider ;)
,,,aaand to contribute to the topic: Go New York! Wooo!