A constant sound that can transform your sleep quality.
Find your ideal time to sleep or wake up
Calculate my sleep cycles →White noise is a constant, uniform sound containing all audible frequencies at the same intensity. Think of a fan, radio static, or constant rain. It's a "wall of sound" that masks environmental noises that could wake you or prevent you from falling asleep.
It works because your brain processes changes in sound, not sound itself. A dripping faucet doesn't wake you by its volume, but by the irregularity of "drip... drip... drip" against silence. White noise eliminates those contrasts by filling the auditory space uniformly.
| Type | Characteristics | Sounds like... |
|---|---|---|
| White | All frequencies, same intensity. Higher pitched. | TV static, powerful fan |
| Pink | More power in low frequencies. Softer and more natural. | Steady rain, distant waterfall |
| Brown | Even deeper and more bass. Very relaxing. | Distant thunder, flowing river |
Pink noise is usually the most recommended for sleep because it sounds more pleasant and resembles natural sounds.
Keep it loud enough to mask ambient noise, but not so loud it's uncomfortable or damages hearing. A level similar to a soft conversation (40-50 decibels) is ideal.