Built on 24 years of sleep science

Lynnclaire Dennis spent decades studying how specific sound frequencies interact with the body. David Rotman, a lawyer by trade and her longtime friend, kept supporting the work. Not because he saw a product, but because the findings were too significant to set aside.

The first version wasn't a sleep device. It was a meditation tool, built around a natural sequence of frequencies the team had been studying since 2001. Early EEG tests in 2018 showed what they were looking for: an increase in the Alpha/Theta ratio, consistent with deep meditative states.

Then came Lisbon. A follow-up study with non-meditators turned up a surprise. Even sitting upright, participants were registering Delta waves, the signature of deep sleep. Researchers had to wake subjects up. The Portuguese team laughed: "sono" is their word for sleep.

A 2022 follow-up put 25 participants in bed in a dark room. Seventy percent fell into Delta sleep within three minutes. The same frequencies designed to deepen stillness were also guiding the brain into deeper stages of sleep, not by masking noise, but by working with the body's own resonance.

Twenty-four years of research later, that work became Sonopeace. Validated in an IRB-approved, double-blind, placebo-controlled study with statistically significant results across multiple sleep measures.