Most sleep advice ends at the same place: put on some white noise. For many people that works. For some autistic people it is exactly what keeps them awake — about 4 in 10 autistic people find everyday sounds uncomfortably loud. This app starts from the other end: nothing plays until you start it, every background sound starts at zero, and the music fades out on its own after the time you set. No narration, no guided meditation, nothing that talks to you.
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Every background sound starts at zero. You add only what you want.
The fridge in the next room. A notification from somewhere. The white noise app that was supposed to help. At night small sounds stop being small — and most sleep apps answer that with more sound, a soothing voice and a streak counter.
You don't need more sound.
You need sound you control.
27 instrumental pieces, original compositions in the style of classical and modern composers — no vocals, no narration. Three presets are ordered by how much is going on, not by time of night, and Silence Only fades every sound out with one tap. A preset starts a 45-minute timer on its own, so nothing plays all night.
Which sound helps and which one is unbearable differs a lot from person to person, and bedtime is the worst moment to find out. Sound check plays six sounds one at a time, quietly, at the volume you use at night. You mark the ones you are comfortable with, and up to three are saved with the music and a Sleep Timer as Custom 1. In the evening you only have to start it, not decide it. It takes about two minutes.
Sound check
Can you listen to this one?
The screen goes dark 2 minutes after you press play, so the phone is not one more light in the room. 20 seconds before, a short notice says it is coming. You can change the delay to 1, 5 or 10 minutes, or turn it off. Do Not Disturb switches on while music plays, so calls and notifications stay quiet; alarms still ring.
Music Only
Sleep Timer · 45 min
Nothing here moves until you press the button. In the app, a tap on the black screen brings it back.
Short samples from the app's own catalog. The layer underneath is optional and quieter than the music.
Every layer in the app starts silent. Nothing is chosen for you in advance.
No vocals, no narration, no guided meditation. Each track starts with a gentle fade-in.
No clicks, no chimes. Nothing beeps or pops up while it plays.
Rain, waves, white, pink and brown noise, a deep muffled noise and more. Each starts at zero, each has its own volume.
The fan you already fall asleep to, or your own humming. It stays on your phone.
One switch turns down everything above about 5 kHz. It fades in over two seconds, so nothing changes suddenly.
45 minutes, then a 5-minute fade to silence. A ring in the toolbar shows how much is left.
One tap replays your previous evening: same piece, same mix, same volume, same timer.
For a phone lying next to you in bed: no stray touch changes the volume or the track.
The main screen and the mixer keep their places release after release.
No internet, no sign-up, no e-mail address. The Sleep Log stays on your phone.
Estimated share of autistic adults. Across ages 15 to 80, poor sleep was reported by 63.7% of autistic people against 46.4% of non-autistic people.
About 41% of autistic people have hyperacusis, discomfort at ordinary volumes, in a meta-analysis across ages.
Of 288 autistic adults in the UK, 90% slept poorly and 58% had never discussed it with a doctor.
Music first, noise optional: in studies of adults with insomnia, listening to music improved how well people rated their sleep. For continuous noise as a sleep aid, the evidence is very weak and runs from help to harm. Neither was studied in autistic adults specifically. So the music is the core here and every background sound starts at zero.
What has stronger evidence: for long-term insomnia, cognitive behavioural therapy for insomnia (CBT-I). A version adapted together with autistic adults reduced insomnia in a randomised trial of 163 people, and the effect held for six months. This app is not that treatment. It makes the evening predictable and the sound around you yours.
Most sleep apps arrive with a plan for you. This one waits for you to set it up.
7 days free — every feature unlocked
then $11.99 once — yours to keep
The trial needs no card and no account, so there is nothing to cancel.
Something else? Read the full FAQ or write to us — a real person answers.
Free for 7 days on Android phones and tablets. If it doesn't suit you, it costs you nothing.
Try it free for 7 days
Calm Sleep for Autistic Adults