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The Relationship Between Quality Sleep and Sound

When it comes to falling asleep, most people would agree that a quiet environment is better than a noisy one.
But what level of sound is considered ideal for sleep?
In terms of numbers, it's below 40 decibels—about as quiet as a residential neighborhood at night or a library. That's quite peaceful.
However, some people may actually find it hard to sleep when it's too quiet.
In the past, humans lived in nature, surrounded by sounds like wind, babbling brooks, rain, and rustling leaves.
Because of this, a bit of natural background noise may actually help people feel more relaxed.

Of course, not all sounds are good for sleep.
Low-frequency sounds are more relaxing than high-frequency ones,
and irregular, natural sounds are better than highly repetitive or artificial ones.

In any case, being relaxed before sleep is key to achieving high-quality rest.
It’s important to create a sound environment that suits your personal comfort level.
That said, loud or continuous sounds can prevent your brain from fully relaxing.
So if you like to listen to music or nature sounds while falling asleep, be sure to keep the volume low and set a timer to turn it off after about 30 minutes.
This will help support deeper, more restful sleep.