Night Hag

Folklorically, the night-hag is not a single origin tale but a recurring explanatory slot: many cultures attribute episodes of sleep paralysis and terrifying nocturnal dreams to an external agent that visits the sleeper at night. In Old English and Norse lore this was personified as the mare/mære, a damned or cursed woman whose nocturnal travels visit and oppress sleepers; in Islamic-influenced contexts the intruder is often identified with a jinn (karabasan), while other traditions treat it as the recently dead returning (Fiji) or use vernacular phrases that describe the pressing or binding sensation (East Asian terms). Scholarly summaries treat these as culturally specific ways of locating agency for a shared physiological experience rather than as a single, unitary mythic origin.

Descriptions vary by culture and do not form a single uniform image. Scandinavian accounts describe a damned woman (mare) whose body is carried in sleep and who visits villagers to sit on their rib cages. Atlantic-diaspora and southern U.S. accounts portray an 'Old Hag'—an old or malevolent female figure who leaves her physical body at night and sits on victims' chests. Albanian accounts describe the Mokthi/Makthi as a male spirit sometimes wearing a golden fez. Turkish tellings may imagine the intruder in a jinn form, sometimes depicted with a wide hat. East Asian idioms (Chinese, Japanese, Korean, Mongolian) focus on action-based descriptions—'ghost pressing' or being bound—rather than detailed anthropomorphic features. Fijian kana tevoro is framed as a demon that 'eats' the sleeper; visual specifics are not emphasized in the summarized sources.

Commonly reported behaviors across traditions include visiting a sleeping person at night, inducing paralysis or the sense of being held down, producing a heavy pressure on the chest or ribs, generating terror and frightening dreams, and in some contexts causing breathlessness or the sensation of strangulation. Particular traditions add culturally specific attributes: Scandinavian lore emphasizes the mare sitting on rib cages; Newfoundland/Atlantic accounts describe the hag leaving her body at night; Turkish karabasan narratives treat the attacker as a jinn that can hold and strangle; Fijian kana tevoro interprets the event as 'eating' and may allow conversation with the dead if prolonged; Albanian Mokthi can be placated or tricked (taking his hat grants a wish but invites repeat visits). Some traditions imply night-travel or bilocation/astral leaving of a physical body. The figure is therefore a folkloric agent attributed with perceptual and interactive powers during sleep rather than a clinically verified being.