If you own a cat, or have ever owned a cat, you know exactly how this feels.  That is if you let the cat sleep with you to begin with.  All of my cats have done this to me on countless occasions.  If it wasn’t at the head of the bed, it was at the foot of it.  Or beside me.  Or sometimes on top of me.  There were moments when I would force the cat to lay down.  It worked, for about five minutes.  I think it only worked that long because the cat thought it was going to get petted.  I’ve even had them do this for so long that I have actually shut the cat out of my bedroom.  Of course that only led to them crying and pawing at the door to be let back in.  In other words people, never forget that your cat rules your roost, even while you are firmly planted in it.  😉