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.

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