I had a crappy college dorm with morning birds, not all night birds. If you can't do a truly quiet room, I've found either an AC or fan can mask most noises ef

I had a crappy college dorm with morning birds, not all night birds. If you can't do a truly quiet room, I've found either an AC or fan can mask most noises effectively (I can still feel cars idling outside, or hear people yelling). Also see https://mynoise.net/ https://mynoise.net/ which has a panoply of sound-generation options. I have spent hours trying various noises.