Deep Space
Nebula drift, parallax stars, and tunable noise (pink, brown, green, binaural).
What this scene is
Deep Space is the scene most different from the others. The visual is a procedural starfield with parallax depth, drifting nebula clouds, and optional pulsar pulses. The audio is fully synthesized — no recorded layers, just real-time noise generators.
You can mix four noise types: pink (1/f, brightest), brown (1/f², bassiest), narrow-band green (~500 Hz, closest to research-cited "calming" frequency), and binaural (left/right phase-shifted, headphone-only). The default mix leans on green and binaural; the presets in the gallery below explore other shapes.
Why noise synthesis works for sleep
Different noise colors have different acoustic properties — and the research on which one is "best" for sleep is more contested than the white-noise machine industry suggests:
- White noise: equal power per frequency. Bright; some listeners find it harsh.
- Pink noise (1/f): power decreases with frequency. Naturally weighted toward how human hearing perceives loudness — feels balanced. Most-cited in sleep research.
- Brown noise (1/f²): even more bass-weighted. Deep, "ocean roar" character. Recent ADHD-community popularity.
- Narrow-band green (~500 Hz): a single band near the middle of human hearing. Less common in research; some sleep clinicians use it for tinnitus masking.
- Binaural beats: different frequencies in each ear, brain perceives the difference. Research on sleep effects is mixed; some studies show modest benefit, others none. Headphones required.
Who Deep Space works best for
- White-noise-machine users who want to replace the device. Deep Space's noise synthesis is more flexible than any consumer hardware.
- ADHD listeners — brown noise has earned a substantial following in this community.
- Listeners with tinnitus — the narrow-band green setting is a tinnitus-masking starting point.
- Headphone sleepers — the binaural mode only works with headphones (or AirPods with spatial audio off).
- Minimalists — Deep Space has the least visual stimulation of any scene. Good for "I want something on without it pulling attention."
What each slider does
- Stars
- Density of background stars.
- Drift Speed
- How fast the starfield moves across the screen.
- Nebula
- Intensity of background nebula color clouds.
- Pulsar
- Rate of rhythmic pulse flashes — adds a visible heartbeat.
- Star Color
- Color temperature of stars. Cool = blue. Warm = orange.
- Depth
- Parallax separation between near and far stars. Higher = more 3D feel.
- Brightness
- Overall display brightness multiplier.
- Pink
- Audio mix: pink noise (1/f).
- Brown
- Audio mix: brown noise (1/f²), bass-heavy.
- Green
- Audio mix: narrow-band green noise (~500 Hz).
- Binaural
- Audio mix: binaural beats. Headphone-only.
Deep Space sine gallery
Each "sine" below is a saved configuration of the Deep Space scene. Scan the QR with your phone, or tap the code — Sleep Sine opens and loads the exact scene the gallery describes.
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Drift
Default Deep Space: slow stars, gentle nebula, narrow-band green noise. Apple TV friendly.
Best for: First-time Deep Space listeners. The cleanest representative of the noise-synthesis mode.
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Vast
High star count and parallax depth. Slow drift. Looking out, not down.
Best for: Wide-screen displays. The visual benefit scales with screen size.
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Pink Noise Bed
Audio shifted entirely to pink noise (1/f). Visual is minimal background.
Best for: Pink-noise sleep research applies here. Broad-spectrum masking with natural frequency weighting.
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Brown Noise Deep
Brown noise (1/f²) — deeper bass weighting than pink. Subwoofer benefits.
Best for: Listeners who find pink noise too "hissy" or treble-heavy. ADHD-favorited spectrum.
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Pulsar Heartbeat
High pulsar amplitude — rhythmic visual pulse paced like a slow heartbeat.
Best for: Coherent-rhythm listeners. People who find regular pulse more relaxing than randomness.
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Stellar Nursery
Nebula-dominant visual. Warm star palette, rich color motion.
Best for: Color-forward visual experience. Apple TV display for parties / ambient room.
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Cold Cosmos
Cool, blue-shifted star palette. Sparse nebula. Hard-vacuum aesthetic.
Best for: Cool-color preference paired with low intensity. Pre-sleep wind-down.
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Binaural Drift
Binaural mix elevated. Use headphones — left/right phase differences create perceived depth.
Best for: Headphone-only listening. Some research suggests binaural beats aid sleep onset; YMMV.
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Sparse Stars
Minimal star count, dim brightness, low everything. The night sky from a city.
Best for: Low-stimulus preference. Sleeping with a screen on but you don't want to *see* it.
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Galactic Drift
Faster drift speed. Stars move noticeably across the field over a few minutes.
Best for: Motion-tolerant listeners. The visual movement itself becomes a meditation anchor.
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Pink + Brown Wash
Both pink and brown noise active, green band off. Full-spectrum natural noise.
Best for: White-noise-machine replacement. Broadest masking spectrum in the library.
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4 AM Cosmos
Lowest-intensity Deep Space preset. Stars almost still, audio minimal.
Best for: Wake-at-4-AM continuation. Maintains atmosphere without re-engaging the visual cortex.
Other scenes
Sleep better tonight
Free on iPhone, iPad, and Apple TV. Deep Space included in the preview; a single one-time unlock opens every scene forever.
Download on the App Store