Great studies on how sleeping affects obesity and the other way around
Obesity linked to a lack of sleep
http://www.letstalkobesity.com/index.php?topic=13.0
Too little sleep may make you fat
http://www.letstalkobesity.com/index.php?topic=19.0
Just a little extra sleep can help combat obesity
http://www.letstalkobesity.com/index.php?topic=29.0