Free sleep sound
Green noise for sleep
A gentle, mid-range hush with no sharp hiss and no heavy rumble. Many people find it the most natural noise colour to fall asleep to: like a far-off waterfall that never stops.
A simple way to use it
Start it a few minutes before bed at a low volume.
Use a speaker across the room rather than headphones overnight.
Set the sleep timer, or leave it running until morning.
Keep the volume low, well below conversation level. For babies, place any sound source away from the cot and keep it quiet.
Which noise colour is best for sleep?
There is no single best colour. Research on noise and sleep is mixed and mostly small.
Green suits people who find white noise harsh and brown noise heavy. Pink is a close neighbour.
If you like weather, try Rain & Thunder. If you want deep and steady, try Pure Brown or Deep Sleep.
Compare matching sounds
Open any sound to read its full guide and start listening.
- Deep Sleep
Brown noise with slow delta beats.
- Rain & Thunder
Steady rain with distant thunder.
- Pure Brown Noise
Deeper, rumbly noise for heavy masking.
Common questions
Is green noise good for sleep?
Some people find it calmer than white noise because it has less hiss. It is not proven better than other colours; choose the one you stop noticing.
Is green noise safe to sleep with all night?
At a low volume, yes for most adults. Keep it quiet and use the sleep timer if you prefer silence later in the night.
Can I use green noise for a baby?
Many parents use steady noise. Keep it quiet and the speaker well away from the cot. Ask your health visitor or doctor if you are unsure.
Green noise or brown noise for sleep?
Brown noise is deeper; green is lighter and more open. Try a night of each.
Ready to listen?
Your sound starts in the player, where you can adjust every layer.