I've always done so, since a child (different cats obviously) but a friend of mine, who hates pets, said it's unhygienic. I suppose it is in a way, although I know cats like to clean themselves a lot.
I know it's hardly a study, but I rarely get ill, whereas my friend who's critical of me is constantly complaining of colds/coughs.
Aibu and unhygienic to let my cat sleep on my bed?