Insomnia Sleep Aid: Maritime Navigational Aids & Markers (Cognitive Shuffle)

Insomnia Sleep Aid: Maritime Navigational Aids & Markers (Cognitive Shuffle)

From Deeply Unimportant: Sleep Stories for Racing Minds by Dallas Kachan — Boring Technical Readings for Sleep

May 17, 2026 · 46 min · Episode 24

About this episode

This episode features a technical survey of maritime navigational aids designed to help listeners fall asleep.

Sleep well to a deep, boring voice — an alternative to sleep stories and white noise. This ASMR sleep aid is for relaxation, insomnia relief and racing minds that need to fall asleep. Tonight, we audit the floating architecture of the high seas. We examine the International Association of Marine Aids to Navigation and Lighthouse Authorities (IALA) System A, the rigid, geometric language of navigational aids that guide the world's shipping fleets across most of the planet. This is a technical survey of lateral pillars, cardinal spars, and the precise mathematical rhythms of light that define safe water. We move beyond the shore to document the specific color coordinates of maritime signage and the exact durations of isophase and occulting flashes. There is no destination here, only the structural boredom of an international maritime standard. Find rest in the predictable repetition of the "two-plus-one" flash and the silent, upright geometry of the channel marker. Deeply Unimportant is a sleep ASMR sleeping aid for minds that need structure to drift off. An alternative to CBT therapy, it employs a form of what sleep scientists call cognitive shuffling that can overcome mind racing…

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