I haven't. I don't think I've seen anyone who thought there was a benefit to it. The only psychodynamic / analytic therapists I've seen don't place a value on it (as Kohut and self psychologists don't tend to do). I'm not sure whether I would like to do it or not. I think I'd like it if my therapist couldn't look at me. I'd be happy enough not looking at him. I worry that lying down would feel sexualized, though. I guess I wouldn't mind trying it. I said to my t that I wouldn't mind. Then he did his behaviorist thing with the trying to discourage what he thought was my avoidance of him. Sigh.