Oscillating fans can be great for sleeping because they provide a steady, gentle background noise, often referred to as "white noise," which can help drown out other sounds and create a calming environment. The oscillation adds variation to the sound, which some people find soothing. If you're looking for something specific, like a recording of oscillating fan noise, there are plenty of apps, websites, or YouTube videos dedicated to white noise or fan sounds. Would you like help finding one of those, or maybe you have a specific type of fan sound in mind?