I have never heard of that to be sleepy, only content/happy. Like this:
Bunsen, probably not, it has been a while so I am not sure but I *think* it is from an old screensaver.. If you want I could hook my 8100 up to my PC's svideo input and try to generate a sadmac.. Not quite what you were looking for though (I assume you were looking for a way to extract other things and information on that?)