If I only had one cat I would totally agree but with three I'm not so sure.
Ripley likes to sleep on my feet and will "stick" me if I move my feet too much. During the cold months Jazz likes to sleep between my knees. I ended up on anti-inflamitory medicine this spring after a winter of her causing arthritis in my knees and hips. Now Scout comes up between 5 am and 7 am for her attention. She sleeps almost on my head and licks my neck, face and hands raw. I don't know when the last time was I had a good night sleep. My husband on the other hand, sleeps like a baby. The cats don't bother him.