

A blog called
China Moon has compiled,
here and
here, an odd collection of photos taken when people are at their most vulnerable -- while they are sleeping. Unfortunately, most of the photos aren't credited. Many look like they were grabbed from Flickr.
Also a nice watch is a short video Micah posted some time ago on his blog.
You can see China sleeping and another very good video at YouTube.
also see a gallery of Shanghaiese sleeping people made by a French photographer I interviewed...