I wonder low loud op is listening that the sound bleed can be heard by the roommate. I live in a dorm with another guy, separated by 1.5 meters between our beds with no wall between us, apart from 2 monitors I use on the table beside my bed. I asked him if he'd ever heard something from my headphones, he said no, and I tested it myself, I also couldn't hear it. That's why I have the 2nd pair of open back afterwards.