That's strange. When I had cats they loved to curl around my head, drool in my ear, and purr all night long so I couldn't sleep. You may want to take your cat in and get him/her checked out.
Consider yourself lucky. Mine used to sleep on my head.
My dog does that. he likes being kicked in the head. Specially when I'm dreaming of being Mexicos next soccer champion
Because that is what cats do ... nuff said ... lol
so did mine. maybe because they dont like seeing our faces when we sleep..idk but i didn't like my cat sleeping at the bottom of my bed i would always move her because i felt like i would kick her in my sleep...which i did once or twice..