Your Better Sleep Starts Here
Not all "noise" is the same. White, pink, and brown noise have different frequency balances, and one may work better for your brain. We break down the differences based on acoustics research and user feedback.
| White Noise | Pink Noise | Brown Noise | |
|---|---|---|---|
| Frequencies | Equal across all | Emphasizes lows | Emphasizes very low |
| Sound Like | TV static | Rainfall | Ocean waves / fan |
| Best For | Masking sharp noise | Deep relaxation | Deep sleep, tinnitus |
| Volume | Can be harsh | Softer, natural | Deepest, most calming |
White noise has equal energy at every frequency—like TV static or an FM radio between stations. It masks sharp, sudden noises (a door slamming, a car horn). Some people find it harsh at high volume. Best for light sleepers in noisy environments.
Pink noise emphasizes lower frequencies—like steady rainfall or leaves rustling. Studies show pink noise improves deep sleep (slow-wave sleep) and memory consolidation. It feels more natural than white noise.
Brown noise emphasizes even lower frequencies—like ocean waves, a distant thunderstorm, or a rumbling fan. It's the deepest, most calming. Many people report falling asleep faster with brown noise. It also helps mask tinnitus.
Try brown noise first—most sleepers find it most calming. If brown noise feels too deep, try pink noise. If you need to mask sharp city noise, use white noise. All are available on the best white noise machines we reviewed.
Is white noise bad for you? No. At a reasonable volume (under 50 dB), white noise is safe and helps sleep. Keep it quieter than 50 dB to protect hearing.
Can I use my phone? Yes, but phones emit blue light. A dedicated sound machine (see our Dohm review) sits on your nightstand and doesn't tempt you to scroll.
Brown noise is the best for deep sleep. Pink noise is a close second for relaxation. White noise is best for masking sharp environmental noise.
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