Pink noise: a steady hum that helps you sleep better

If you've been having trouble falling asleep or staying asleep through the night, you may want to try listening to pink noise. What is pink noise exactly? As the Sleep Foundation explains, "Pink noise is a sound that contains a random assortment of all the audible frequencies, with more power in the lower frequencies. Specifically, pink noise contains the same overall intensity in each octave, but the volume of individual pitches decreases by 3 decibels with each higher octave." In other words, it's like a pleasant, balanced hum.