Guides

Sleep & sound, explained.

Short, honest guides on how sound, noise and breath actually affect sleep and focus — no fluff, no pseudoscience.

Brown noise vs. white noise vs. pink noise

The noise colors explained in plain language — and how to pick the right one for sleep, focus, or a crying baby.

Two tones, one illusion your brain builds itself — what the frequency bands mean and what the science really says.

Step-by-step instructions, the nervous-system logic behind it, and how it compares to box and coherent breathing.

Sound masking, "semantic silence", and a practical recipe for building a focus mix that actually works.

Everything in these guides is one tap away in Soundie — 100+ sounds, binaural beats, breathing patterns and night-long playback, fully offline.