With CBT-I as the scientific core and the Nine Sleep Intervention Modalities (NSIM) as its signature craft, WST-I integrates nutritional science, movement science, environmental engineering, and smart monitoring to deliver standardized, replicable sleep-health service solutions for non-medical settings. Every service in this system is a non-medical wellness support service and does not involve diagnosis, treatment, prescription, or any other medical act.
In one line: WST-I = CBT-I scientific foundation + the Nine Sleep Intervention Modalities craft + full-scenario delivery standards.
From top to bottom, WST-I builds a complete theory–practice–talent loop, with the three layers advancing step by step and iterating continuously.
The theory layer guides the practice layer, the practice layer is delivered through the talent layer, and the talent layer feeds insight back to enrich the theory layer—three layers advancing step by step in a continuously iterating loop.
WST-I answers "how sleep-health service is delivered professionally" through six core elements.
Sleep science, the 3H model, and the Nine Sleep Intervention Modalities.
The CBT-I six-step closed loop.
Non-medical "3-No" principle and client service agreements.
Product classification and selection standards.
SOPs for six core scenarios.
The Sleepist certification system.
The 3H model is both the underlying philosophy and the top-level guide of the WST-I system, and a professional value set every Sleepist must uphold. Following the practice path of "cultivating the body, cultivating order, and cultivating the heart," it forms a complete intervention depth from the body to behavior to the mind.
Physical health—sleep is deeply interwoven with emotion, metabolism, immunity, and cognition, and quality sleep is the foundation of daytime functional recovery. Cultivating the body focuses on "whether the body can fall asleep," strengthening the physical foundation.
Practice logic: Movement · Nutrition · Physiotherapy · Devices
The fit and order among person, environment, and society—sleep is essentially the "alignment" of multiple relationships: circadian rhythm, behavioral habits, environmental stimuli, and social jet lag. Cultivating order focuses on "whether the environment and behavior support falling asleep."
Practice logic: Routine · Behavior · Environment · Relationships
Psychological health and humanistic ethics—sleep difficulties often reflect one's relationship with the self: anxiety, fixation, a sense of lost meaning, and other deeper themes. Cultivating the heart focuses on "whether the inner self allows one to fall asleep."
Practice logic: Emotion · Self-care · Empathy
The three advance step by step, from the body to behavior to the mind, forming a complete intervention depth. 3H is the unified underlying value set for the WST-I technical system, Sleepist talent development, and ecosystem service delivery.
The Nine Sleep Intervention Modalities is a systematic, non-medical humanistic wellness craft that integrates sound, aroma, rhythm, and mind-body regulation, and is the signature-craft expression of the WST-I system. Using aroma and sound as horizontal carriers, it builds a layered framework of the psychological, body, daily-living, and sleep-environment layers—corresponding respectively to "calming the mind, regulating the body, organizing daily living, and creating the sleep environment."
WorldSleep also advances "aijiu" into the international sleep-health system of expression, translating the cultural value of Eastern warmth, mind-body soothing, pre-sleep ritual, and rhythmic harmony into modern scientific and service language—avoiding metaphysical, mystical, or medicalized framing.
See how the curriculum breaks WST-I down into a learnable, assessable, and deliverable growth path.