A gentle pause from the pace of everyday life. The Safe and Sound Protocol (SSP) is a clinician-led, non-invasive listening intervention developed from polyvagal theory that uses filtered, modulated music to gently regulate the autonomic nervous system, improve physiological state, and increase resilience to stress; delivered in a structured series of sessions, it targets social engagement systems by calming the vagal pathways, often reducing hypervigilance, anxiety, and sensory sensitivities while enhancing emotional regulation and social connection.