Info on Sleep

[Egdel K. Calbkram]

Hi, (i hope this is the right group...)

make money fast! (just kidding...)

I would like to find a book that discusses sleeping in general (not just dreams). I'm
interested in the effects of changing you sleeping habits (quantity, etc), but also just
some info on sleep itself. All the bookstores I have checked seem to carry just 
"dream" books.

In particular I would like to decrease the amount of time I sleep, but I don't want to
do this if it would be "unnatural" and have negative affects.

Can anyone make some recommendations? Thanks!

mark