HPNOSS is a collaborative project with Andreas Xyrichis (KCL), John Wynne (UAL), Jamie Mackrill freelance researcher and Anne Marie Rafferty (KCL). Begun in 2017, it seeks to explore sound in hospital environments, understanding its effects and exploring ways to ameliorate its consequences. The first phase sought to provide a holistic understanding of sound in the hospital environment and the intimate relationship of noise to sleep, rest, treatment and recovery. This phase led to recording in hospital environments, recreating the soundscape of an Intensive Care Unit in a simulation ward used for training, a symposium and the publication of an article in the British Medical Journal. The second phase will implement some of the findings by installing a 'masking' system in a hospital ward to discover the impact of this technology on patient, visitor and staff experiences. The following video from John Wynne explains some of our approach.