White vs Pink vs Brown Noise: Which Is Best for Sleep?

“Coloured noise” describes sounds that contain all frequencies at once, but with the energy weighted differently across the spectrum. That weighting changes how the noise feels — and which one helps you sleep. Here's the plain-English breakdown.

White noise

White noise has equal energy across every frequency, which makes it sound bright, flat, and hiss-like — think untuned radio static or a fan on high. Because it covers the whole spectrum evenly, it's excellent at masking sudden sounds. The trade-off: some people find the high-frequency content a bit harsh over a full night.

Pink noise

Pink noise reduces energy as frequency rises, so it's softer and more balanced than white noise — closer to steady rain or wind. Many people find it more natural and easier to sleep to, and it's often the recommended middle ground if white noise feels too sharp.

Brown noise

Brown noise rolls off the high frequencies even more steeply, leaving a deep, low rumble like heavy rainfall, a distant waterfall, or a jet cabin. It's the warmest and most enveloping of the three, and it's become a favourite for people who want to quiet a racing mind or who find higher frequencies distracting.

Which should you use?

• Blocking out a noisy environment: white noise covers the widest range.
• A natural, balanced feel: pink noise.
• Deep, cosy, mind-quieting: brown noise.

There's no universal “best” — it comes down to your ears and your environment. The smart move is to try all three for a few nights each and notice which one you stop hearing fastest. The one that fades into the background quickest is usually the one helping you most.

A note on volume and timers

Keep coloured noise at a moderate level — loud enough to mask interruptions, not so loud that it becomes the thing keeping you up. And set a fade-out timer so it doesn't play at full volume until morning.

LumaSleep includes white, pink, and brown noise alongside rain, fire, and nature textures, so you can A/B them in the same app — and even layer a noise track under rain or waves to find your perfect blend.