I was nearly always grounded from all electronics from 6-13 (autdhd, and authoritarian parents, bad mix), and had a bedroom with no exterior windows. My window went to a modified 3-season porch thing, in 2 of the 3 places (the third was an apartment for like 6mths, I barely remember it), and that’s where my mom slept, so.. really quiet dead silence, mostly, else I was in trouble. Again. Or whatever garbage my mom had on tv, muffled through the wall.
Now I have tinnitus, so silence is really loud. I have aquariums tho and the hum and bubble of the air pump helps a lot (plus really loud circulation fans).