Study Finds on MSN

Pink noise reduces REM sleep: Earplugs outperform sound machines

In A Nutshell Pink noise at 50 decibels reduced REM sleep by 19 minutes per night in healthy adults, potentially affecting ...
WebMD

White Noise, Pink Noise, and Brown Noise: What's the Difference?

You may have heard of white noise. The steady, static-like sounds from it can drown out disturbing noises and help you sleep better. But have you heard of pink noise and brown noise? Growing research ...