insomnus

Fall asleep to
timeless stories

121 free audiobooks enhanced with solfeggio frequencies, binaural beats, and ambient soundscapes.

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The War in the Air audiobook
The War in the Air
H.G. Wells · 9h 13m · 432 Hz solfeggio
507K+ views 4,100+ subscribers 121 audiobooks 305+ hours

Timeless prose. Scientifically enhanced. Classic literature layered with delta-wave binaural beats, solfeggio frequencies, and immersive ambient soundscapes — calibrated for the deepest possible rest.

Three layers of sleep science

Ambient soundscape

Rain, ocean waves, forest night, fireplace — 13 immersive environments layered beneath the narration to mask distractions and create a cocoon of calm.

Solfeggio frequency

10 healing frequencies from 174 to 963 Hz, played as gentle sine waves beneath the narration. Each frequency maps to a different aspect of relaxation and renewal.

Binaural beats

Delta wave frequencies at 0.5–4 Hz guide your brain toward the deepest stages of sleep. Different tones in each ear create a third, entraining frequency. Headphones recommended.

Library

🔍

Adventure 14

Classic Literature 15

Mystery & Detective 14

Dark & Gothic 5

Science Fiction 73

Sjambak audiobook cover
Sjambak
Jack Vance · 54m · 432 Hz
Slaves to the Metal Horde audiobook cover
Slaves to the Metal Horde
Stephen Marlowe · 2h 16m · 432 Hz
The Variable Man audiobook cover
The Variable Man
Philip K. Dick · 2h 25m · 432 Hz
The Food of the Gods audiobook cover
The Food of the Gods
H.G. Wells · 6h 59m · 432 Hz
Day of the Moron audiobook cover
Day of the Moron
H. Beam Piper · 1h 3m · 432 Hz
Contagion audiobook cover
Contagion
Katherine MacLean · 1h 2m · 432 Hz
The World Set Free audiobook cover
The World Set Free
H.G. Wells · 6h 6m · 432 Hz
The Cosmic Express audiobook cover
The Cosmic Express
Jack Williamson · 24m · 432 Hz
The Time Machine audiobook cover
The Time Machine
H.G. Wells · 2h 58m · 432 Hz
Prize Ship audiobook cover
Prize Ship
Philip K. Dick · 39m · 432 Hz
The Green Girl audiobook cover
The Green Girl
Jack Williamson · 3h 39m · 432 Hz
Second Variety audiobook cover
Second Variety
Philip K. Dick · 1h 26m · 432 Hz
Doom from Planet 4 audiobook cover
Doom from Planet 4
Jack Williamson · 44m · 432 Hz
Meeting of the Minds audiobook cover
Meeting of the Minds
Robert Sheckley · 1h 14m · 432 Hz
The Chapter Ends audiobook cover
The Chapter Ends
Poul Anderson · 48m · 432 Hz
The War in the Air audiobook cover
The War in the Air
H.G. Wells · 9h 13m · 432 Hz
Sentiment Inc. audiobook cover
Sentiment Inc.
Poul Anderson · 54m · 432 Hz
After Worlds End audiobook cover
After Worlds End
Jack Williamson · 3h 18m · 432 Hz
The Sleeper is a Rebel audiobook cover
The Sleeper is a Rebel
Bryce Walton · 1h 49m · 432 Hz
The Invisible Man audiobook cover
The Invisible Man
H.G. Wells · 4h 31m · 432 Hz
The Sleeper Awakes audiobook cover
The Sleeper Awakes
H.G. Wells · 7h 13m · 432 Hz
Inside Earth audiobook cover
Inside Earth
Poul Anderson · 1h 34m · 432 Hz
The Meteor Girl audiobook cover
The Meteor Girl
Jack Williamson · 41m · 432 Hz
End as a Hero audiobook cover
End as a Hero
Keith Laumer · 1h 7m · 432 Hz
Hostage of Tomorrow audiobook cover
Hostage of Tomorrow
Robert Abernathy · 1h 47m · 432 Hz
The Lake of Light audiobook cover
The Lake of Light
Jack Williamson · 1h 1m · 432 Hz
The Eyes Have It audiobook cover
The Eyes Have It
Philip K. Dick · 5m · 432 Hz
A Martian Odyssey audiobook cover
A Martian Odyssey
Stanley G. Weinbaum · 55m · 432 Hz
The Skull audiobook cover
The Skull
Philip K. Dick · 43m · 432 Hz
Card Trick audiobook cover
Card Trick
Walter Bupp · 1h 0m · 432 Hz
The Defenders audiobook cover
The Defenders
Philip K. Dick · 47m · 432 Hz
The Misplaced Battleship audiobook cover
The Misplaced Battleship
Harry Harrison · 59m · 432 Hz
The Gadget Had a Ghost audiobook cover
The Gadget Had a Ghost
Murray Leinster · 2h 7m · 432 Hz
Empires Collapse audiobook cover
Empires Collapse
Insomnia Audiobooks Original · 2h 28m · 432 Hz
Mr. Spaceship audiobook cover
Mr. Spaceship
Philip K. Dick · 58m · 432 Hz
Pygmalions Spectacles audiobook cover
Pygmalions Spectacles
Stanley G. Weinbaum · 40m · 432 Hz
The Thing in the Attic audiobook cover
The Thing in the Attic
James Blish · 1h 10m · 432 Hz
No Great Magic audiobook cover
No Great Magic
Fritz Reuter Leiber · 1h 30m · 432 Hz
Salvage in Space audiobook cover
Salvage in Space
Jack Williamson · 48m · 432 Hz
The Sentimentalists audiobook cover
The Sentimentalists
Murray Leinster · 1h 28m · 432 Hz
In the Days of the Comet audiobook cover
In the Days of the Comet
H.G. Wells · 7h 35m · 432 Hz
A Modern Utopia audiobook cover
A Modern Utopia
H.G. Wells · 8h 15m · 432 Hz
Piper in the Woods audiobook cover
Piper in the Woods
Philip K. Dick · 40m · 432 Hz
The Island of Doctor Moreau audiobook cover
The Island of Doctor Moreau
H.G. Wells · 4h 1m · 432 Hz
And Devious the Line of Duty audiobook cover
And Devious the Line of Duty
Tom Godwin · 1h 13m · 432 Hz
The Winds of Time audiobook cover
The Winds of Time
James H. Schmitz · 1h 7m · 432 Hz
Pursuit audiobook cover
Pursuit
Lester del Rey · 1h 38m · 432 Hz
The World Mover audiobook cover
The World Mover
George O. Smith · 2h 7m · 432 Hz
The Marching Morons audiobook cover
The Marching Morons
C.M. Kornbluth · 1h 3m · 432 Hz
The Crystal Crypt audiobook cover
The Crystal Crypt
Philip K. Dick · 41m · 432 Hz
Nightmare Planet audiobook cover
Nightmare Planet
Murray Leinster · 1h 31m · 432 Hz
The Music Master of Babylon audiobook cover
The Music Master of Babylon
Edgar Pangborn · 1h 0m · 432 Hz
Spheres of Influence audiobook cover
Spheres of Influence
Insomnia Audiobooks Original · 2h 30m · 432 Hz
Youth audiobook cover
Youth
Isaac Asimov · 55m · 432 Hz
Atomic! audiobook cover
Atomic!
Henry Kuttner · 58m · 432 Hz
The Gun audiobook cover
The Gun
Philip K. Dick · 26m · 432 Hz
Beyond The Door audiobook cover
Beyond The Door
Philip K. Dick · 12m · 432 Hz
The Masked World audiobook cover
The Masked World
Jack Williamson · 7m · 432 Hz
The Aliens audiobook cover
The Aliens
Murray Leinster · 1h 18m · 432 Hz
The Paradox Machine audiobook cover
The Paradox Machine
Insomnia Audiobooks Original · 1h 53m · 432 Hz
Wine Like the Greeks audiobook cover
Wine Like the Greeks
David E. Fisher · 1h 10m · 432 Hz
The Pygmy Planet audiobook cover
The Pygmy Planet
Jack Williamson · 53m · 432 Hz
The First Men In The Moon audiobook cover
The First Men In The Moon
H.G. Wells · 6h 17m · 432 Hz
The Hanging Stranger audiobook cover
The Hanging Stranger
Philip K. Dick · 29m · 432 Hz
Project Mastodon audiobook cover
Project Mastodon
Clifford D. Simak · 1h 1m · 432 Hz
Third Planet audiobook cover
Third Planet
Murray Leinster · 53m · 432 Hz
The Tunnel Under The World audiobook cover
The Tunnel Under The World
Frederik Pohl · 1h 3m · 432 Hz
The Expendables audiobook cover
The Expendables
A. E. Van Vogt · 1h 4m · 432 Hz
Watchbird audiobook cover
Watchbird
Robert Sheckley · 40m · 432 Hz
Tony and the Beetles audiobook cover
Tony and the Beetles
Philip K. Dick · 27m · 432 Hz
The War of the Worlds audiobook cover
The War of the Worlds
H.G. Wells · 5h 37m · 432 Hz
Citadel of the Star Lords audiobook cover
Citadel of the Star Lords
Edmond Hamilton · 2h 4m · 432 Hz
Beyond Lies the Wub audiobook cover
Beyond Lies the Wub
Philip K. Dick · 14m · 432 Hz
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Frequently asked

Solfeggio frequencies are specific tones (174–963 Hz) believed to promote healing and relaxation. Each frequency corresponds to different benefits — 528 Hz is associated with stress reduction, while 432 Hz is known as the natural tuning frequency. Our player layers these tones beneath the narration at a gentle volume.

Binaural beats play slightly different frequencies in each ear, creating a perceived third tone that guides your brainwaves. Our delta wave presets (0.5–4 Hz) encourage slow brainwave patterns associated with deep, restorative sleep. Headphones provide the best experience.

Headphones are recommended for the full binaural beats effect, since the technology relies on delivering different frequencies to each ear. The solfeggio frequencies and ambient sounds work beautifully on speakers too.

Yes. Every audiobook is a public domain work, free to listen to on YouTube. The solfeggio frequencies, binaural beats, and ambient sounds are all included at no cost. No paywalls, no trials, no accounts required.

Older prose has a natural, flowing cadence that’s perfect for drifting off. Combined with solfeggio frequencies and binaural beats, classic literature creates ideal conditions for deep sleep. Plus, public domain works mean we can offer everything for free.