The three primary sleep sound options offer distinct characteristics: White noise produces all sound ... sleep quality in ...
Pink noise, like ocean waves or steady rain without thunder and wind, is softer in high-frequency tones and stronger in low-frequency tones than white noise. According to The Sleep Foundation ...
WHITE NOISE This contains all frequencies in equal measure that sound like a heavy waterfall or high fan to help get a nice, solid sleep. PINK NOISE Pink noise, like ocean waves or steady rain ...