I find it quite disgusting. 

My dog and my cat didn't want to sleep in my bed. They prefered other places. When he was puppy my dog liked to sleep with me, however when he grew up he slept on an armchair. My cat slept on a windowsill. My friends had lived with me for fifteen years. I sometimes feel sad for them. I remember that my dog when she was young jumped onto my bed and wanted to sleep beside me or on my legs. Now I would let her sleep in my bed. Now I have playful, frisky kitten. His the age is of two months. He is very independent. He sleeps in the bin, in the winter hat and in the shoe closet.

No to afraid of tecks. Lymes disease, et cetera.

My dog slept in my room, next to my bed. But never in my bed.

Not only do I allow it, I prefer it.