White Noise for Sleep: White, Pink & Brown Noise and Fan Sounds

White noise blends every audible frequency into a steady, even wash of sound that covers disruptive background noise — traffic, snoring, a noisy neighbor. It is widely used to fall asleep faster and stay asleep. Pink noise, with stronger low frequencies, sounds softer and warmer and many find it better for deep sleep; for something deeper still, try brown noise. You will also find a real floor-fan recording and a few nature sounds people use as white noise, all looping seamlessly in the browser.