Guides

What the colors of noise really are, which one suits sleep or focus, how loud is safe, and what the research does and does not show. Every guide names its sources so you can check them, and is written by the people who build the sound engine on this site.

• The Colors of Noise, ExplainedWhite, pink and brown noise get recommended for everything from sleep to studying, but the names rarely come with an explanation. This guide covers what each color actually is, what it sounds like, and which one to reach for.Updated October 31, 2026 · 4 min read
• White, Pink or Brown Noise: Which Is Best for Sleep?If you search for the best noise for sleep you will find confident claims for all three. The truth is that the right color depends on what keeps you awake, how you hear, and simple preference. Here is how to choose in about ten minutes.Updated October 31, 2026 · 2 min read
• Is White Noise Safe for Babies?White noise can help babies settle and stay asleep, and most parents who use it find it helpful. It is safe when used sensibly. The risks come from one thing: loud sound placed close to a baby for long periods. Here is what the research found and how to avoid that.Updated October 31, 2026 · 2 min read
• How Loud Should White Noise Be?Noise only needs to be loud enough to blur the sounds you want to cover. Most people use far more volume than they need, especially at night. Here are practical targets, and how to check them.Updated October 31, 2026 · 2 min read
• Does Brown Noise Help ADHD? What the Research ShowsSince 2022, countless people with ADHD have described brown noise as the thing that finally quiets their brain. Is there science behind it, or is it a trend? The honest answer is: there is real research on noise and ADHD, but almost none on brown noise in particular.Updated October 31, 2026 · 2 min read
• How to Block Out Noise at NightThere are two ways to deal with noise at night: stop it reaching you, or make it matter less. The best results usually combine both. Here is what works for the most common culprits, roughly from cheapest to most involved.Updated October 31, 2026 · 2 min read
• Is It Bad to Sleep with White Noise Every Night?Millions of people sleep with a fan, a sound machine or an app every night. Every so often a headline suggests this might be harmful. Here are the common concerns, what the evidence actually says, and how to use noise in a way that has no real downside.Updated October 31, 2026 · 2 min read
• How Our Noise Generator WorksMost noise sites and apps play recordings. This one generates every sound live on your device. Here is how, in plain terms, with enough detail that an audio engineer can check our work.Updated October 31, 2026 · 3 min read