Night hag: The night hag is a malevolent supernatural entity linked to the phenomenon of sleep paralysis.

Night hag
Night hag - Explains historical accounts of sleep paralysis and underlies the origin of the term 'nightmare'.
Origins & First Encounters
The night hag is a mysterious and ominous figure that has intrigued and unsettled people for centuries.
Emerging from tales of old, this supernatural entity is closely entwined with the unsettling experiences of sleep paralysis.
Legends tell of a malevolent presence that suffocates its victims by sitting on their chests, making the experience both terrifying and inexplicable.
Historically, the creature has been linked to nocturnal terrors, where it was often seen as a harbinger of ill fortune and spiritual distress.
Its roots can be traced back to medieval European folklore, a period when supernatural explanations were sought to understand the unexplainable.
Traditions from different cultures acknowledge a similar phenomenon, showing that the fear of an unseen nocturnal tormentor is nearly universal.
Many accounts associate the night hag with unlucky dreams and ominous warnings, blending the realms of myth and medicine.
The evolution of the creature in folklore reflects broader cultural anxieties about the night and the vulnerabilities of the human body during sleep.
Moreover, the early use of terms like 'nightmare' further cements its status as a symbol of dark, oppressive forces that predate modern interpretations of sleep disorders.
Source Texts & Tale Variants
Ancient manuscripts and oral traditions provide the foundation for the stories surrounding the night hag.
Medieval texts, folklore collections, and grimoires have recorded unsettling encounters with an entity that brings a heavy, paralyzing dread.
There is evidence in various European sources where chroniclers mention visits by a spectral hag who haunts the dreams of the unsuspecting.
In addition to written records, folklore passed down through generations has kept the tale alive, adapting it to reflect local superstitions and societal fears.
Different regions have their own narrative twists, with some accounts attributing the night hag’s actions to the influence of dark magic or cursed ancestry.
Oral storytellers have often recounted variations where the night hag appears as an omen of bad harvests or sudden misfortunes.
This richness of narrative is bolstered by modern analyses of sleep paralysis, which provide a scientific lens to interpret ancient descriptions.
Such sources suggest that there was an ongoing desire to explain the mysterious events that occur during the vulnerable moments of sleep.
Consequently, the stories have evolved over time, resulting in a patchwork of accounts that blend supernatural evil with psychological phenomena.
Form & Powers
Descriptions of the night hag frequently depict her as an aged, withered figure cloaked in an aura of decay and malevolence.
Her features are often rendered in sharp contrasts, with sunken eyes, a gnarled visage, and a tangled mass of unkempt hair that emphasises her otherworldly nature.
Visual portrayals sometimes include elements such as bony fingers, a hunched posture, and ragged garments that suggest neglect and the passage of endless time.
The creature’s form can appear both vaguely human and unmistakably demonic, bridging the realms of the animate and the ghostly.
Artistic interpretations sometimes assign her an ethereal translucence, as if she inhabits a state between the physical and the spectral.
The physical presence of the night hag is frequently accompanied by an overwhelming sensation of cold or an oppressive weight, reinforcing the terror of her appearance.
Some regional depictions even suggest the presence of animalistic attributes, such as clawed extremities or a hunched, bestial silhouette.
Despite the varied details in her depiction, a common thread of decay, despair, and a predatory nature runs through most descriptions.
This amalgam of features makes her simultaneously a figure of horror and a symbol of the mysterious forces that disrupt the normalcy of human life.
Regional Faces
Across different cultures, the night hag takes on distinct characteristics that are shaped by local beliefs and historical contexts.
In parts of Europe, she is often portrayed as a witch-like figure whose malevolence is interwoven with dark magic and an association with the devil.
Scandinavian folklore contributes a variant known as the 'Mara', which similarly terrorises the sleeper by immobilising them during the night.
In certain Celtic traditions, the night hag appears as an old crone whose visits are seen as omens of impending doom or misfortune.
Some North American indigenous narratives incorporate a spirit with analogous traits, though these versions often emphasise a connection to nature and the spirit world rather than outright evil.
Meanwhile, in regions of Eastern Europe, the creature may be intermingled with legends of vampiric entities, thereby reinforcing its association with nocturnal dread.
Every iteration is imbued with the local colour of superstition, with variations in appearance, name, and narrative intent.
This regional diversity highlights the universal impact of sleep-related terrors, even as the cultural expressions of that fear differ significantly from one place to another.
Ultimately, while the core experience remains consistent – a paralyzing sense of dread during sleep – its interpretation and portrayal are as varied as the communities that recount its tale.
Cultural Parallels
The night hag shares intriguing similarities with other spectral beings from diverse mythological traditions around the world.
Her chilling visitations during the night find echoes in the Scandinavian 'Mara', which similarly is linked to the phenomenon of sleep paralysis.
In Slavic folklore, figures such as the Baba Yaga are also depicted as enigmatic witches whose ambiguous nature blends wisdom with terror.
This creature’s nocturnal torment has parallels with the Japanese concept of 'kanashibari', a state in which a person feels unable to move due to supernatural forces.
Comparisons can also be drawn with various succubi and incubi legends, wherein nocturnal visitations serve as metaphors for the mysterious and sometimes sinister forces lurking in the dark.
Such cross-cultural connections reveal a shared human attempt to explain and cope with the frailties of sleep and the boundary between dreams and reality.
These myths often blend psychological experiences with supernatural interpretations, highlighting the universality of night-time anxieties.
Furthermore, the uncanny similarity between these figures underscores the human tendency to personify and mythologise the inexplicable sensations experienced during sleep.
Through these comparisons, the night hag emerges as not only a specific figure but also a representative of the broader tapestry of night-bound terror in folklore worldwide.
Legacy & Modern Evolution
In modern times, the night hag has undergone a significant transformation in both its interpretation and cultural resonance.
What was once understood purely as a supernatural force has increasingly been examined through the lens of psychology and neurology, particularly in relation to sleep paralysis.
Literature and film have reimagined her as a multifaceted symbol, one that encapsulates both the supernatural and the internal turmoil of the human psyche.
This evolution reflects broader societal shifts, where scientific understandings of sleep disorders have softened the purely malevolent image of the night hag without entirely erasing its haunting allure.
Her character is now often employed in horror and fantasy genres to evoke an atmosphere of dread and to symbolise the unknown aspects of the unconscious mind.
Contemporary reinterpretations have also led to a more nuanced perspective, exploring themes of ageing, marginalisation, and the inversion of traditional feminine roles.
The digital age has seen a resurgence in the myth as well, with artists and storytellers using modern media to reinterpret its iconic imagery.
In academic and cultural discussions, the night hag serves as a potent reminder of how folklore can intersect with personal and societal anxieties, making her relevant even in a modern context.
This enduring legacy underscores the timeless nature of myth, where ancient fears are continually reframed to reflect the challenges of each new era.
Interesting Fact
The term 'nightmare' originally described the night hag’s oppressive visits, providing a direct linguistic link between folklore and the modern understanding of sleep-related phenomena.
Quick Creature Info
Our Mythic Legendary Rating:

Also Sometimes Known As:
Habitat:
Supernatural Powers:
Physical Attributes:
Abilities:
Behavior:
Weaknesses:
Lore:
References
Discover Another Mythical Legend You May Not Have Heard Of?
Uncover the mysteries of ancient folklore and expand your knowledge of legendary beings from cultures around the world.
Dare to Meet the Cecrops I....
Mythical Disclaimer: The images and data on this site are derived from various historical and literary sources, but we have found that many myths often have multiple versions and interpretations across references, sometimes contradictory. As a result, these creature depictions are artistic interpretations—imaginative blends of folklore, legend, and a dash of AI guesswork. Because creature descriptions vary widely, our illustrations and accompanying information represent our best effort to honor mythology while bridging creative gaps. Enjoy these interpretations—just remember, we've done our best to respect the stories and validate available data, but in the realm of mythology, details often shift, imagination leads the way, and nothing is ever set in stone!
Curated by the Mythological Creatures Team (rev. May 2025)