I must have noise to go along with going to sleep. Usually thats an audio book or long-form video essay type YouTube videos. I wear one earbud to bed if I’m sleeping at night with my girlfriend or just blare it from the TV if I’m sleeping alone during the day (rotating shift). I feel like when I don’t have engaging audio and I’m trying to sleep I can’t quiet my mind enough to sleep. A fan or random ambient noise isn’t enough for me.
I honestly would prefer library silence or less. Earplugs cause other issues for me so they are not an option, I have tried. I also prefer almost complete darkness.
I’m honestly looking to build a float tank to use for times when I am really struggling to sleep. When I scuba dive the only reason why I don’t try to take a nap is the risk of losing my regulator or running out of air.