We are in the same bed but we each have our own covers as he jerks in his sleep due to seizures and I can't handle him moving so much. With my own blankets it doesn't bother me as much. I refuse to sleep in sep beds.
Well... my husband doesn't steal the covers because of seizures but if I'm wrapped up snugly, he can practically take my head off when he jerks the covers his way. After 35+ years, I finally hit on seperate covers but on the same bed. It does make the bed look funny and making it takes a bit of time but I no longer end up with no covers and no whiplash!