A stressful day can make sleep so difficult, especially if there are other distracting noises - barking dogs & traffic sounds. Rain noises can be useful by masking these noises. A good example of Pink Noise, rain sounds are characterized by louder sounds at low frequencies and quieter at high frequencies when compared to classic white noise.

Pink noise is common in living organisms - animals naturally produce pink noise as part of their internal function. Heartbeats are a good example of pink noise. Research indicates that pink noise can be especially helpful to improve sleep for healthy individuals, including evidence that pink noise enhances slow wave sleep cycles, where the brain is less responsive to outside sounds, an important sleep stage for sustaining brain and body health.

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