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.
We have a ceiling fan, and I also used various white noise apps on my phone. I read somewhere that sound apps running on my phone all night was bad for the battery, so I bought a small, dedicated rechargeable white noise machine.