Photo by markhillary via Flickr (Creative Commons)

Slate’s Tim Wu reflects on travel as a medium for some great sleeps, and looks back on his best. The winner? A night in a snow shelter: “After snowshoeing to our snow homes and burrowing in, I remember falling into what must be the deepest state of dreamless sleep humans are capable of. It was the mythical supersleep, deeper than any other, the Atlantis of the unconscious. It was a heavy dose of what scientists call slow-wave sleep. I’ve been trying to find it again ever since—but the question is, where?”

发贴者 healthlifeblog 时间： 6/22/2009