Pink Noise: What It Is & Can It Improve Sleep?
Updated: 6 days ago
Pink noise is a softer, deeper cousin of white noise. It sounds like steady rain or wind in the trees, and many people find it more soothing than white noise for sleep. Here is what pink noise is, what research does and doesn’t say, and how to use it.
What is pink noise?
Pink noise contains all audible frequencies, but its power decreases as the frequency rises, with equal energy in each octave. The result sounds balanced and natural, like rainfall, rustling leaves or a steady breeze.
Why people use pink noise
Like white noise, pink noise masks sudden sounds. Because it is less hissy, many people find it easier to listen to for a whole night.
What does the research say?
Pink noise gets attention because of research on deep sleep. In some studies, short bursts of pink noise timed to a person’s slow brainwaves increased deep sleep and improved next-day memory, including in older adults. Those studies used carefully timed sound pulses in a lab, not a continuous pink noise track, so they don’t show that ordinary pink noise does the same.
What people use pink noise for
Falling asleep: a soft, steady sound for the whole night.
Masking noise: covering traffic, neighbours or snoring.
Relaxation: a calm background while reading or resting.
Focus: a gentler alternative to white noise for work.
Naps: a short session at low volume.
How to use pink noise safely
Keep the volume low, around the level of a quiet conversation or lower.
Place the speaker away from your head, not on your pillow.
Speakers work fine; you don’t need headphones for noise.
For babies, keep the device well away from the crib and the volume low.
If you use it all night, a sleep timer or a gentle fade-out can help.
Pink noise vs brown noise
Pink noise is balanced and rain-like. Brown noise drops off even more in the high frequencies, so it sounds deeper still, like a strong waterfall or distant thunder. If pink feels too bright, try brown.
Listen in the Healing Sounds app
Healing Sounds has free pink noise plus white, pink, brown and blue noise, rain, ocean, forest and fan sounds, binaural beats and solfeggio frequencies. Mix pink noise with rain or ocean sounds to make your own blend.
Long sleep sound videos are on our Healing Sounds YouTube channel.
Frequently asked questions
Is pink noise better than white noise for sleep?
Many people find pink noise more pleasant because it is less hissy. There is no strong evidence that one is better for everyone, so try both at a low volume.
Does pink noise improve deep sleep?
Some lab studies found that precisely timed pink noise pulses increased deep sleep. A normal pink noise track playing all night has not been shown to do the same.
Do I need headphones for pink noise?
No. Noise works well through a speaker. Many people prefer a speaker for sleep so they don’t wear headphones all night.
How loud should pink noise be?
Quiet: around the level of a soft conversation or lower, with the speaker away from your head. If you have to raise your voice over it, it is too loud.
Explore more guides
This article is for general information about sound and relaxation. It is not medical advice. If you have trouble sleeping, hearing concerns or tinnitus, please talk to your doctor.
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