Sarah Morrissey is the founder of Cocoon Mode de Vie, the first practice of its kind to begin with a personalised scientific assessment of how a specific individual’s brain and biology interact with their living or working environment.

She spent more than a decade in investment banking and financial services consulting in London and New York, in a career built on performance, precision, and a level of pressure that stops registering as pressure when it is the only mode you know. A turning point in 2017 ended it.

What followed was a long recovery spent almost entirely indoors, and the observation this practice was built on: the rooms she was recovering in were working against her. Light at the wrong hour. Sound that never fully stopped. Some rooms gave energy back. Most did not.

The science explaining why already existed, circadian biology, the stress axis, how the brain reads a room before it has consciously been read. It was sitting in journals rather than in homes. Sarah retrained alongside the career she continued: a two year diploma in health coaching completed in nine months, then an MSc in Psychology and Neuroscience at King’s College London, which she is still completing.

She founded Cocoon Mode de Vie in 2024. Its methodology, the Cocoon Method™, moves clients through three phases, Awaken, Transform, Sustain, and its client deliverable, the Cerevra Blueprint™, assesses a home across fourteen frameworks spanning sensory environment, cognitive function, emotional regulation, circadian rhythm, and physical recovery. The practice operates across New York and Los Angeles.

Her argument is straightforward. Real estate builds spaces. Healthcare treats symptoms. Almost nothing is designed to regulate the nervous system where life actually happens.