White noise is a background sound that many people find soothing, calming, and good for sleep. If you struggle to fall asleep at night, especially if you live in a noisy environment, white noise could help block out ambient sounds. White noise may even affect your brain waves, giving you a more restful sleep.
Different types of noise are described using colors because they have similar properties to light waves. Both sound and light consist of waves with two characteristics that are important to how we experience them:
White light is all the colors (frequencies) of light put together. White noise is a random mixture of all frequencies of sound at the same amplitude or decibel level.
Studies show that listening to white noise helps people fall asleep faster.In one study, researchers compared participants in a hospital exposed to white noise to those who were not. The patients who listened to white noise saw their time of onset to sleep reduced by nearly 40%.Other studies have shown white noise also helps babies get to sleep faster.
Researchers believe thatwhite noise helps people fall asleep because it blocks out other environmental sounds. A hospital can be noisy, even at night, and the white noise masked those disruptive ambient sounds. They also suggest that the white noise helps to synch up brain waves, which contributes to better sleep.
Based on these results and those of similar studies, white noise is particularly useful if you sleep in a noisy environment. For example, in a city, irregular sounds from the streets can awaken you multiple times in the night, but white noise masks those disruptions.
Listening to white noise is not a strategy only reserved for noisy environments. White noise may change your brain waves to make you sleep deeper and better. It tends to focus the mind and quiet those anxious bedtime thoughts about the next day.
Using white noise to sleep is simple. Use BetterSleep to turn on the white noise sound. You’ll hear a soft hushing or hissing kind of noise, like static on a radio or TV. Let it play softly next to you as you drift off to sleep.
For the best results, make white noise a part of an overall relaxing bedtime routine. Start with a meditation or gentle movement session. Avoid looking at your screen as you settle into the routine. Turning on white noise should be the last step before you’re ready to sleep.
Researchers have studied white noise the most, but there are other colors of noise that may be useful for sleep. While white noise includes all frequencies at the same amplitude, different colors emphasize specific frequencies by turning up the amplitude:
Many people find deeper sounds soothing, so pink and brown noise have become more popular with their emphasis on lower frequencies. Like white noise, pink noise has an effect on brain waves during sleep.Researchers have found that pink noise simplifies and synchronizes brain waves, encouraging higher sleep quality.
The type of noise that works best for sleep is highly individualized, but you can try them all BetterSleep. Keep the volume turned low and start with white noise. Then, try the other colors and see which ones give you quicker, more restful sleep.