My wife can’t sleep without a fan running. This has been a point of contention since early into ours relationship, as I still after 7+ years find I have much more restful sleep with it off.
BTW the biggest win in getting a good sleep for me has been making sure my bedroom is properly ventilated, so that I have low levels of CO2. Since I started doing that, my sleeping issues have been reduced to practically nothing - i.e. I almost never wake up feeling drowsy, which was something that happened to me a couple days a month before I started monitoring CO2.