Sleep and focus for adults
White noise for sleep: does it work?
Millions of adults sleep with a fan, rain or a sound app. Here is when it helps, when it does not, and how to use it well.
White noise can help some adults sleep by masking disruptive sounds such as traffic, neighbors and a partner's snoring. Evidence that it improves sleep generally is mixed. Keep the volume low (around 50 decibels or less), try pink or brown noise if white is harsh, and use a timer if you prefer.
Who benefits most
- People in noisy streets, apartments or near airports.
- Light sleepers who wake at sudden sounds.
- Shift workers sleeping in the day.
- People with a partner who snores.
- Anyone who finds a silent room unsettling.
What the research says
A systematic review of noise as a sleep aid found mixed results and low-quality evidence overall. Some trials show faster sleep onset, and some show no benefit or even worse sleep for certain kinds of noise. In practice, the clearest benefit is masking. If your sleep problem is noise, sound may help. If it is not, it probably will not.
Choosing a sound
- White noise masks speech and sharp sounds.
- Pink noise and rain are softer and more natural.
- Brown noise is deep and smooth.
- Ocean and fan are familiar options.
Volume
Keep it just loud enough to cover noise, and no louder. A level around that of a quiet conversation or lower is typical. Long hours at high volume can harm hearing.
Tips
- Place the speaker across the room, not at the pillow.
- Try each sound for a week.
- Use a timer if you do not want it all night. See the app's fade-out option.
- Keep the room dark, cool and consistent.
- If sleep problems continue for weeks, speak to a doctor. Sleep disorders such as sleep apnea need proper treatment.
Frequently asked questions
Is it OK to sleep with white noise every night?
For most people, yes, at a low volume. Avoid loud levels.
Which is better for sleep: white, pink or brown noise?
No proven winner. Try each. Pink and brown are less harsh.
Can white noise make sleep worse?
For some people it can, especially if it is too loud or distracting. If so, stop.
This page is general information, not medical advice. Talk to your pediatrician about your baby's sleep and hearing, and follow current safe sleep guidance.