Guide
Sleep sounds, plainly
Rain, white, pink, brown, green. What they do, how loud to play them, and a night that does not lock rain behind a paywall.
Why rain
Rain sounds for sleep
Why rain on glass is the most-played sleep sound, what the research actually says, and how loud to keep it.
The hiss
White noise for sleep
White noise masks well and hisses. When to use it, when to switch to pink, brown, or rain.
Between white and brown
Pink noise for sleep
Pink noise is 1/f. Rain, wind, and ocean sit here. Lab bursts timed to slow waves are not the same as an 8-hour YouTube video.
The rumble
Brown noise for sleep
Brown (red) noise is deeper than pink — waterfall, distant thunder, a box fan in the hall. Evidence is thinner. Preference is not.
A newer name
Green noise for sleep
Green noise is a mid-band slice of pink — heavy rain, a river, speech-shaped. It is a marketing name with a real filter.
How loud
How loud should sleep sounds be?
Masking works at modest levels. All-night 50–60 dB is not free. Headphones, babies, and dawn fade.
By JTT · byjtt.com · hello@byjtt.com