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Every page on SleepByNoise in one place — all the colors of noise, the guides for each use, side-by-side comparisons, the tools, and our articles.
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Colors of noise
All seven colors, from the deep brown rumble to the bright violet hiss.
Noise by use
The right sound for sleep, focus, studying, ADHD, babies, tinnitus, and relaxation.
Compare colors
Hear two colors side by side to find the one that works for you.
Tools
The free noise generator and a browser sound machine.
Color guides by use
A specific color of noise tuned for a specific need.
Guides & articles
Plain-language answers to the most common questions about noise.
- How to Choose the Right Color of Noise
Brown, white, pink, green — a simple, practical way to pick the right color of noise for sleep, focus, babies, or tinnitus.
- Is It Safe to Sleep With Noise Every Night?
Nightly brown or white noise is fine for most adults at a sensible volume. Here are the volume and distance rules that keep it safe — babies included.