Free Tool
Mix your own sleep sound.
The mixing board from Calming Galaxy, in your browser: layer the free nature sounds, give each one its own volume, and let the sleep timer fade it all out. No account, nothing stored.
Loading the free sounds from the catalog…
Sleep timer
The mix fades out over the final 30 seconds, then stops on its own.
Why mix instead of just pressing play?
A single sound is a wallpaper; a mix is a room. Crickets on their own are a field at night — lower them under a little birdsong and the same recording becomes a campsite at dawn. Small changes in the balance change what your brain does with the sound, which is why the mixer is the center of the app rather than a footnote.
What you hear here is exactly the app's free tier, loaded live from the same catalog the app uses — so if the free lineup grows, this board grows with it. The rest of the library — Rain, Ocean Waves, Fire, River, and more — mixes the same way inside the app. Browse the sound library to hear what each one is for, or take the five-question quiz if you'd rather be matched.
Make the mix part of the landing sequence
A blend works hardest when it starts before you get into bed — it becomes the sound of the evening rather than a switch you flip at lights-out. Our 30-minute wind-down routine builds the whole sequence around that idea: sounds first, then two minutes on the breathing timer, then the timer fades everything out. If you're deciding how long the sound should run, all night vs. a timer is a settled question with a surprisingly short answer.
Sound mixer questions.
More free tools
Breathing Exercise Timer
A guided pacer for box breathing, 4-7-8, and simple resets — one, three, or five minutes.
Sleep Calculator
Bedtime and wake-time math based on 90-minute sleep cycles, with an honest note on how approximate they are.
Which Sleep Sound Matches You?
Five questions, one sound, no email — find your starting point in the sound library.
Tonight could be your calmest night yet.
Download Calming Galaxy free and turn any evening into a quiet, cosmic wind-down.
