Why brown noise helps concentration
Interruptions are expensive: every time a sudden sound grabs your attention, it takes time to get back into deep focus. Brown noise reduces those interruptions by filling the room with constant, predictable sound, so conversations, notifications, and street noise no longer break your concentration.
The low, warm tone is also less fatiguing than bright noise over a long work session, which matters when you are focusing for hours.
How to use it for deep work
Start playback at a low, comfortable level and pair it with a work method like the Pomodoro technique — use the Sleep Timer as a focus timer for a 25- or 50-minute sprint. Keep the Tone warm to minimise ear fatigue, and leave Waves off for a perfectly steady backdrop.