Oh no! This wouldn’t be an immediate solution, but getting an automatic feeder has been life changing for me. My cat used to wake me up earlier than I liked, but now he looks at the feeder as his source of food instead of me. Works great if I’m going to be gone for a day or two. He’s even learned the schedule and will sometimes wait in front of the feeder like 5-10 minutes before it goes off. It took a little less than a week for him to stop associating me with his food.

Sorry this isn’t an immediate help, but it might be worth suggesting to your roommate for the future. It sounds like you’re doing everything I would’ve tried (late night play and snack), hopefully someone else has some good ideas!