Sleep guides

Research-grounded posts about sound, scenes, and sleep. Plain-English translations of the studies — what the literature actually says, what's well-evidenced, and what's marketing.

Do rain sounds actually help you fall asleep?

What the published literature says about naturalistic sound, sleep onset, and why rain in particular tends to land well for most listeners.

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White, pink, brown, and violet noise — which one for sleep?

The "noise colors" are spectral shapes, not marketing categories. Here's what each one sounds like, what the research says, and how to pick.

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Why generative ambient beats looped tracks for sleep

Looped sleep sounds work — for a while. Then your brain learns the loop, and the once-soothing audio becomes a metronome you can't un-hear.

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Sleep timers: 15, 30, 60, or 90 minutes — which to pick?

The "best" sleep timer length depends on how long you actually take to fall asleep, and what happens if the audio stops too early.

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Using Sleep Sine with Siri, Shortcuts, and Personal Automations

Every voice phrase that works, what the Home Screen widget buttons do, and a walkthrough of building a bedtime automation in Shortcuts.

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Sleeping with an Apple TV ambient screen on

Why an Apple TV is the best surface for an all-night sleep app, and the practical considerations (power, burn-in, screen brightness) that aren't obvious.

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How to put your Apple TV to sleep

Four ways to sleep an Apple TV — the remote's power button, Control Center, Settings → Sleep Now, and the Sleep After timer — plus how to stop it sleeping, or keep it awake as a bedside sleep screen.

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Looking for the scenes themselves?

Each Sleep Sine scene has its own deep-dive page with parameter explanations and a curated gallery of preset configurations (sines) with QR deep links.