What Is Pink Noise?

While most research on the relationship between background noise and sleep involves white noise, evidence suggests that pink noise can help with sleep. Given its ability to drown out unwanted sounds, pink noise helps decrease the time it takes to fall asleep.

Studies have shown that listening to pink noise while sleeping increases slow-wave activity in the brain, commonly referred to as deep sleep, which improves overall sleep quality. More extended periods of deep sleep are associated with better memory, decreased stress levels, improved immune system functioning, and more.