Shadow Person

A shadow person is a dark, human-shaped figure reported in bedrooms, hallways, or peripheral vision, often without visible features. The label is recent and gathers experiences that may have different causes. Many reports occur during sleep paralysis, when wakeful awareness overlaps with dream imagery and a sensed presence. Others may involve low-light perception, expectation, migraine, medication, or ordinary shadows.

Internet forums and paranormal broadcasting helped standardize the phrase in the late twentieth and early twenty-first centuries. One recurring “hat man” form is a contemporary narrative pattern, not evidence that all witnesses encountered one entity.

Online horror frequently turns shadow figures into a hierarchy of named beings. Clinical accounts instead focus on sleep state, fear, visual ambiguity, and the brain’s tendency to detect human forms.

• Baland Jalal, “The Neuropharmacology of Sleep Paralysis Hallucinations,” Neuroscience, 2018.
• Devon E. Hinton and others, “Sleep Paralysis Among Cambodian Refugees,” Transcultural Psychiatry, 2005.