Despite what some think, cats do need human companionship. What are the plate and newspaper to the cat?? Answer, they are two things the cat's person will come back to, at some point. Being in your way is their way of saying they need some attention, for example, if I'm reading a book or on the computer, a furry one will try to get between me and the book, etc.
As for the cat wrapped around your head, according to my Rudy, it's not MY pillow, it's HIS! :-)