3 Hz delta binaural beats with a breathing light, 3 hours
Breathe in as the light grows, out as it fades. For the first minute a soft light paces your breathing; after that the screen stays dim and still, and a slow 3 Hz binaural beat, a warm pad and gently swelling brown noise carry on for three hours.
Watch on YouTube · SleepBetter channel · Brown Noise & Binaural
Headphones needed. The binaural part works only with headphones: a binaural beat only exists when each ear gets its own tone. On a speaker you will just hear a soft hum. Keep the volume low, and don’t listen while driving.
What it is
Three hours of slow, steady sound with three layers: a 3 Hz binaural beat (a 108 Hz tone in the left ear and 111 Hz in the right), a soft D-major pad that moves very slowly, and brown noise that swells and settles on a ten-second cycle, like slow breathing. There is no voice and nothing sudden. The YouTube chapters are simple: breathe with the light (0:00), delta sleep music (1:00) and a gentle fade-out at the very end (2:59:48).
How to use it for sleep
Put on comfortable headphones, set the volume low and follow the light for the first minute: in for four seconds as it grows, out for six as it fades. After that the screen stays dim, so you can keep following the slow swell of the noise or just drift off. On a speaker you will still hear the pad and the brown noise, but the binaural beat itself needs headphones. If a longer breathing practice helps you, our breathing pacer runs in the browser.
What 3 Hz means here
3 Hz sits in the range scientists call delta, the slow brain waves of deep sleep. We use it as a slow, low sound to relax to, not as a way to change your brain state: research on binaural beats is mixed, and this is not medical advice or a treatment. Our binaural beats guide explains what the studies found. To hear a binaural bed for half a minute first, try the 3.5 Hz headphones Short.
Best for
People who like a steady, musical bed rather than plain noise, nights when you want a short breathing cue without a voice, and naps or wind-downs of up to three hours. If you prefer no tone at all, the 8-hour deep brown noise is the same idea with nothing but noise. Headphones needed for the binaural part: a binaural beat only exists when each ear gets its own tone. On a speaker you will just hear a soft hum. Keep the volume low, and don’t listen while driving.
How this was made
Everything you see and hear was generated from code by SleepBetter: the binaural tones, pad and brown noise, and the breathing-light visual. No stock footage, no AI tools and no voice.
Questions
Do I need headphones?
For the 3 Hz binaural beat, yes: each ear needs its own tone. The pad and brown noise still play on a speaker.
Will 3 Hz delta beats give me deeper sleep?
We don’t claim that. Research on binaural beats is mixed. Treat it as a calm, slow sound to fall asleep to.
Keep watching
Video · 8 hoursDeep sleep brown noise, 8 hours overnight
Warm, low brown noise for the whole night, on a near-black screen.
ShortHeadphones on: a 3.5 Hz binaural tone for sleep
A slow binaural tone under warm brown noise, over a quiet night lake. Headphones on.
Video · 8 hoursRain on a cabin window, 8 hours with a dark screen
Close raindrops on glass and soft rain on the roof. No thunder, dark by 5:00.
SoundBinaural beats for sleep
A real hearing effect with mixed evidence. How they work and how to try them.
Free tool4-7-8 breathing exercise
A calm, on-screen pacer for 4-7-8, box breathing, cyclic sighing and slow breathing before bed.
Sleep videos and guided relaxation are for general wellness, not medical advice. If poor sleep is affecting your days, talk to a doctor or a sleep specialist.