Is EverLull's classical music copyright-free?

Yes. The compositions by Satie, Bach, Beethoven and Pachelbel are public domain, and EverLull synthesizes its own felt-piano performance live on your device rather than playing any copyrighted recording, so there is nothing to license.

Can creators use EverLull audio in YouTube videos or apps?

Yes. All EverLull audio is synthesized from scratch and owned outright, so licensed loops carry no Content ID or copyright-claim risk. Licenses are quoted per project and grant a perpetual royalty-free right to use the loops in your own productions, including monetized channels.

Sleep · Focus · Meditation · Reading · Baby — a sound studio for every quiet hour

Sleep sounds that
never repeat.

Mix free rain, ocean, and brown noise for sleep, focus, or meditation. EverLull generates every sound live in your browser, so it plays seamlessly all night—even offline.

Play sleep sounds free See the store

Free to start  ·  No account needed  ·  Works offline

↑ This sky reacts to whatever you play below

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The Instrument

Compose your own quiet.

Layer any sounds, set each level, and let the sky respond. Nothing is a recording — it's generated the moment you press play.

Learn how it works

Now playing

Choose a sound

Nightfall

Now playing

Nothing yet — choose a sound

Master

What is tonight for?

Tap a card to add it to tonight's mix

Explore by mood

The craft

No file. No loop point. No seam.

Most sleep apps play a short recording on repeat — and after a while your brain hears the loop. EverLull generates sound continuously from filtered noise, oscillators and modulated filters, so it genuinely never repeats.

01
Truly infinite.
The audio is computed sample by sample. Run it for eight hours and no two seconds are ever identical.
02
Weightless.
No streaming, no downloads. It works on a plane, in a tent, or on airplane mode — using almost no data or battery.
03
Yours to own.
Every sound is original. We license the same seamless loops to creators and apps with zero copyright risk.

Living sounds

Original pieces

Seamless playback

To start tonight

The evidence

Built to the research, not the vibes.

A 2025 narrative review of randomized controlled trials and meta-analyses identified exactly which musical elements help people sleep. EverLull is engineered to that specification.

Fall asleep sooner.

Across trials, listening to music consistently reduced sleep-onset latency — the time it takes to drift off.

Sleep more efficiently.

Studies found improved sleep efficiency: more of the night actually spent asleep.

Sleep longer.

Total sleep time increased with regular pre-bed listening.

The Methodology

What worked Slow, soft, simple, instrumental.
Music at 60–80 BPM with smooth melodies and simple structure — often classical or new age. Every EverLull piece is instrumental and paced at 52–72 BPM, at or below a resting heart rate.
The dose 30–45 minutes before bed.
At a comfortable volume. That's why the sleep timer has a 45m setting and Drift eases the mix down instead of stopping abruptly.
Emerging Brainwave entrainment.
Binaural beats and brain-wave music show promise in trials and are still being validated — EverLull offers Delta through Alpha as optional layers, never as medical claims.

Source: Music as an adjunct for sleep health — narrative review of RCTs & meta-analyses (PubMed). EverLull supports rest and relaxation; it is not a treatment for insomnia or any medical condition.

The Store

Start free. Go deeper when you're ready.

Use EverLull free forever, or unlock the full studio of premium sounds, unlimited saved mixes and lossless synthesis with Plus.

Free

$0/forever

No account needed

14 free ambient sounds
Full multi-track mixer + sleep timer
Focus sessions with on-device stats
Two guided sessions & 108 narrated stories
Offline playback
Premium acoustic environments

Play now

Recommended

Plus

$4.99/mo

or $29.99/yr · 7-day free trial

19 premium environments — storm, fire, drone, night train, cave & more
All six guided sessions — multi-stage programs that move the mix for you
Unlimited saved mixes
Lossless-quality synthesis
Everything in Free

Nights, not just tracks.

★★★★★

“The rain actually sounds like rain the whole night — not a five-second clip on a loop. First app my brain stopped noticing.”

Priya M.
Shift nurse

★★★★★

“Brown noise + fan is my focus button now. Zero data on a flight, still going after four hours.”

Daniel K.
Software engineer

★★★★★

“Upgraded to Plus for the storm and deep-drone sounds and never looked back — unlimited saved mixes means every mood has its own preset.”

Amara T.
Plus subscriber

Questions

Everything, answered.

Why do EverLull sounds never loop or repeat?

Every sound is synthesized live in your browser with the Web Audio API instead of playing a recorded file on repeat. There's no file and no loop point, so the audio runs all night without ever seaming or repeating.

Is brown noise or rain better for sleep?

Brown noise emphasises low frequencies — a deep, steady rumble that masks sudden sounds, which many people find best for staying asleep. Rain adds gentle high-frequency variation that can help you fall asleep faster. EverLull lets you mix both and dial in the balance.

Does EverLull work offline?

Yes. Because the audio is generated on your device rather than streamed, EverLull keeps playing with no internet connection and uses almost no data, storage or battery.

How much does EverLull cost?

EverLull is free with fourteen free sounds, the mixer and the sleep timer. EverLull Plus is $4.99/month or $29.99/year — unlocking premium sounds, unlimited saved mixes and higher-quality synthesis, with a 7-day free trial.

Can I use EverLull sounds in my own videos or app?

Yes. EverLull licenses full-length seamless loops for creators, apps and meditation platforms. Every sound is original and owned by EverLull, so there are no third-party copyright claims. See licensing to preview the sounds and request a license.

Is the classical music really copyright-free?

Yes. The compositions — Satie, Bach, Beethoven, Pachelbel — have been in the public domain for over a century, and EverLull doesn't play anyone's recording of them: a synthesized felt piano performs the pieces live on your device, with subtle timing and touch variation so no two renditions are identical. There is no recording, so there is nothing to license.

Is there scientific evidence that music helps sleep?

Yes. A 2025 narrative review of randomized controlled trials and meta-analyses found that pre-bed music listening reduced sleep-onset latency, improved sleep efficiency and increased total sleep time. The most effective music was slow (60–80 BPM), soft, simple and instrumental — often classical or new age — listened to for 30–45 minutes at a comfortable volume. EverLull is built to that specification, with a 45-minute fade timer and tempos of 52–72 BPM. EverLull supports rest; it isn't a medical treatment.

Is white noise safe for my baby?

Used sensibly, yes — womb-familiar sound helps many newborns settle. Follow the common-sense guidance pediatric groups give for any sound machine: keep the volume gentle (quieter than a soft shower), place the speaker well away from the crib — across the room, never inside it — and use the sleep timer rather than running sound at volume all night. EverLull's Baby mode presets start at deliberately low levels. For medical questions about your child's sleep, ask your pediatrician.

Can I use EverLull audio in YouTube videos or my own app?

Yes — that's what the creator license is for. Every sound is synthesized from scratch and owned by EverLull, so licensed loops are safe from Content ID claims and takedowns. Licenses are quoted per project and grant a perpetual, royalty-free right to use the loops in your productions, including monetized ones. You can't resell the audio itself as audio — see the licensing page and Terms for details.

Can I use EverLull in my classroom?

Yes — the Classroom panel on the Player is free and built for teachers: one-tap focus and quiet-reading scenes, a projector-friendly class timer that ends with a soft chime instead of a bell, one-minute guided "mindful minute" settles read aloud, whole-class breathing, and a shareable room code so students can open the same calm soundscape at home.

From the Journal

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Tonight

Turn the lights down.

Free to start, no account, and it's already playing the moment you press the button.

Begin the night

Your account

Your EverLull.

Manage your plan and billing. No password to remember — your subscription is your key.

Lull AI Companion

Lull can help with mood check-ins, stress resets, focus rituals, bedtime wind-downs, and choosing a calming sound. Guided reflection and activities — not medical or crisis care.

Sleep sounds that
never repeat.

Compose your own quiet.

No file. No loop point. No seam.

Built to the research, not the vibes.

Fall asleep sooner.

Sleep more efficiently.

Sleep longer.

The Methodology

Start free. Go deeper when you're ready.

Free

Plus

Nights, not just tracks.

Everything, answered.

The why behind the sound.

Why Looped Sleep Sounds Keep You Awake

Brown Noise vs. White Noise: Which Is Better for Sleep?

Is White Noise Safe for Babies?

Turn the lights down.

Your EverLull.

Your Zen Rooms

Lull AI Companion