Why does my cat bite me on the top of the head while I'm sleeping?

I have the same thing happening to me, that's why I am on here right now, trying to find out why my cat lick/bites my hair. I will pick him up & he will start licking my face & then eating my hair, he won't like pull it out or anything but he chews on it. He will also, bite me on the side of my head or on the top of my head. I sometimes wear my hair up in a bun & he will try to bite his way through it, he sticks his head all the way in my bun. It doesn't in any way hurt me I actually think it is funny. I just went to the vet & he told me that my cat does it cuz he thinks I am his momma cat. Anoter thing he does is attack my feet, he will follow me all around the house just staring at my feet. When he does get ahold of them he will wrap his paws around both feet & bite me. Sometimes it does hurt me. My boyfriend read in the cat book we have that when he does that he is trying to show his love??? Please tell me there is someone out there that has a cat that does the same thing...

Two cats, brothers, rescued from being absolutely scarily feral about four years ago. Dillon is a chatterbox but his brother, who is usually quiet, saves his curliest miows for that moment when (even though I might have been tickling his tum tum for a good twenty minutes) I lie down on my side to try to sleep and he hops up on my shoulder and starts to comb my hair with his teeth. Now, is it because I've got long hair - he does nothing like this to the man and child of the house? It is the strangest sensation. Kind of ticklish but not exactly pleasant because of his quiet grissled purring right in my ear hole and his cat breath and the thought of the little bits of cat biscuit he's using my hair to floss out. And he pulls my tats which isn't nice. It can't be because he's hungry or feeling starved of attention. And he's a nipper too. Never on bare skin but, when I'm stroking or patting him and I'm wearing a jumper, he'll nip my arm. Not hard (thank heavens - I remember when he first arrived and he ran up and down the walls and I would not like to be on the wrong end of a purposeful use of his available weaponry). If I have the faux fur throw, from the sofa, over me he will sometimes try to have his wicked way with it (but not when it's just on the sofa!!?!) even though he's long since been neutored. I have wondered whether he thinks I'm a female cat but - Clous is neutored! Dillon does none of these things and he's neutored too. He reminds me of one of those Parrots who become obsessed with the female owner and almost bully them. It can't be that he thinks I'm a female cat, though, didn't some of you say you had female cats doing it? Is he grooming me? Why doesn't he do it to other people? Cat's are funny creatures!