Multiplicity

seperate dreams, shared dreams. In shared dreams, I'm me and remember it from my perspective, the others are them and remember it from their perspective. If the body is asleep, some of us can be awake and watch - not see the dreams themselves, but watch the person in the body sleeping. You can slip into the body while it's asleep. But I think whoever you were displacing gets to keep their dream. I don't know, because that would require waking them a few minutes later to find out because no one remembers 100% of their dreams.