White Noise for Sleep: Frequently Asked Questions

Yes, at safe volumes (50 dB or below for adults; the same cap applies to infants). A sleep timer with fade-out is recommended over running all night; it avoids potential habituation to continuous sound and conserves battery on mobile devices. Our generator includes 15, 30, 60, and 90-minute timer options.

Yes, when used correctly. The American Academy of Pediatrics recommends keeping sound machines at or below 50 dB, measured at the baby's head position, placed at least 7 feet from the crib. Our Baby preset automatically applies a conservative volume and a 60-minute timer.

The anecdotal evidence from the ADHD community is substantial, but peer-reviewed research on brown noise specifically is limited. White-noise ADHD studies (Soderlund et al., 2010) support a plausible mechanism (stochastic resonance). Individual responses vary widely. Self-experimentation with our Focus preset is the right approach.

No. Habituation (developing a sleep association with noise, and potentially finding it harder to sleep without it) is possible. This is behavioural conditioning, not physiological addiction. No withdrawal symptoms occur on stopping. A gradual volume-reduction approach over two to four weeks resolves the habit for most people.

It can help as a masker. Pink noise is typically effective for mid-range tinnitus; violet or filtered white noise for high-pitched ringing; brown noise for low-frequency humming. Use the filter sliders to tune the masking frequency. Never mask louder than your tinnitus volume.

For adults: 40-60 dB, depending on ambient noise and use case (sleep vs focus). For infants: at or below 50 dB, measured at the baby's head position. These are measurable with a free app such as NIOSH SLM (iOS) or Decibel X. Our generator's intensity slider adjusts the output; use a dB app to calibrate to your target.

Yes. Our generator works with any headphones or earbuds. Be volume-conservative; extended headphone listening makes it easy to exceed 60-70 dB without noticing. Never use earbuds or headphones on infants. For sleep, flat-profile headphones (sleep headbands) or speakers are usually more comfortable than in-ear earbuds.

No, never. The player page is ad-free by design. Content pages may include affiliate links to sound machines and sleep products with full disclosure. The player itself is and will remain ad-free.

Generated live in your browser via the Web Audio API. Nothing is downloaded after your first visit (the JavaScript is cached). This means perfect infinite loops with no repeat artefacts, instant colour switching, and zero audio bandwidth after the initial page load.

Negligibly. Web Audio API noise generation is computationally lightweight; it uses significantly less battery than video playback. Dimming your screen while the generator runs extends battery life considerably. The generator can comfortably run for several hours on a modern phone battery.

Yes. The Share Preset button in the controls panel copies a URL that encodes your current noise colour, filter settings, and volume. Anyone who opens the link gets your exact configuration immediately. Useful for recommending a specific brown-noise + LP-filter combination for ADHD focus or a particular baby-safe pink-noise setup.

Partially. After your first visit, the JavaScript is cached by your browser. A tab that was open before you lost connection will continue playing. Refreshing or opening a new tab without a connection will fail the initial load. For reliable offline use, a dedicated sound machine app is more suitable.

The domain is whitenoiseforsleeping.com, so white is the default for clarity. Switching to pink, brown, violet, or grey takes one tap or keyboard press (P, B, V, G respectively). Your preferred colour is saved to localStorage after your first session.

No. Rain sounds have a spectral character close to pink noise with added impact transients from individual drops. White noise is flat across all frequencies. Rain sounds have natural rhythm and variation; white noise is purely random. Both are effective for sleep masking, with different subjective qualities.

Sleep Foundation holds the authoritative research-review article for informational queries. We have the actual free tool: a colour-switching, filter-adjustable, sleep-timer-enabled generator that runs in your browser with no signup. Different purposes; both worth reading if you want to understand the topic and then act on it.