Monky by BodyWave

The Science Inside
Monky

A quiet rhythm you can hold.

Inside Monky, low-frequency sound becomes soft movement beneath the plush — a felt rhythm designed to help the body wind down.

Sympathetic Resonance — One rhythm invites another

Sympathetic Resonance. One rhythm invites another. Monky creates a slow felt rhythm and your body begins to follow it, in four steps: 1) Monky starts — the plush with a glowing heart sends a slow rhythm outward; 2) You feel it — a person holds Monky to the chest as the rhythm moves into the body; 3) Your body follows — busy signals from the brain, heart, and breath settle into slow, steady rhythms; 4) Rest comes easier — a calm face beneath a crescent moon and stars.
Monky starts — the plush with a glowing heart sends a slow rhythm outward. You feel it — a person holds Monky to the chest as the rhythm moves into the body. Your body follows — busy signals from the brain, heart, and breath settle into slow, steady rhythms. Rest comes easier — a calm face beneath a crescent moon and stars.
Why It Helps

Calm, by design.

Felt, not loud

The room stays quiet. The rhythm stays close.

Steady feels safe

A predictable cue gives the body less to react to.

Something to follow

Attention lands on the rhythm instead of the next thought.

Modes

Choose the rhythm for the moment.

Each mode is tuned toward the brainwave range the body naturally settles into for that state — slower for rest, a little quicker for calm attention.

Relax

Alpha · 8–12 Hz

For winding down. Alpha is the calm, idling rhythm of a relaxed, awake mind.

Sleep

Delta · 0.5–4 Hz

For bedtime. Delta is the slow, deep rhythm the brain follows in its most restful sleep.

Focus

Beta · 13–30 Hz

For quiet attention. Beta is the steady, alert rhythm of calm, focused attention.

For Kids & Adults

Made for winding down.

For Kids

Lights down. Toys away. Monky tucked close. A familiar rhythm becomes part of the bedtime routine.

For Adults

The room is quiet, but the day is still running. Monky gives the body one steady thing to settle with.

The Research

Promising research. Careful claims.

Low-frequency sound and vibration have been studied for relaxation, stress reduction, heart-rate variability, and sensory regulation. Monky draws from this research, but it is not a medical device, treatment, or guarantee of sleep.

View references
About alpha, theta & delta brainwaves

Alpha, theta, and delta are brainwave patterns associated with relaxation, drifting off, and deeper sleep. Monky's low-frequency patterns are inspired by these slower states, but do not force the brain into them.

References & sources
  1. A Scientific Review: Investigating Claims of Therapeutic Efficacy through Low-Frequency Sound Vibration. A review of vibroacoustic therapy (VAT) covering mechanisms — low-frequency sound (commonly ~30–120 Hz), parasympathetic / "relaxation response," vagus-nerve stimulation, vibration transmission through the body's water content, proposed brainwave associations (e.g., ~40 Hz and delta waves), a randomized trial showing reduced stress and improved well-being in adults, improved heart-rate variability, and reviews of acoustic stimulation for sleep — alongside its noted limitations and calls for more rigorous trials. Source file in research folder.
  2. Moore, J., Farquharson, K., & Lotter, C. (2025). "Grooving in My Body": A Mixed-Methods Pilot Study of Vibroacoustic Therapy's Effects on Emotion Regulation and Attention in Autistic Children. Healthcare, 13, 465. A peer-reviewed pilot study using low-frequency vibroacoustic therapy (≈25–75 Hz) with children, reporting calm and enjoyment, observed improvements in attention, and feasibility — while noting further research is needed. Source file in research folder.
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