Night Hag

Also Known As: also the Old Hag; the hag of hag-riding; closely tied to the mare of “nightmare”
Region/Culture: English folklore, rooted in the wider Germanic tradition of the night-pressing mare
Mythos: English Mythology, Anglo-Saxon Mythology, Germanic Mythology
Primary Type/Nature: Fairy Folk and Spirit Beings
Mythical Attributes: A nocturnal spirit that settles on a sleeper’s chest and holds the body paralyzed while pressing the breath out, the traditional explanation for what is now called sleep paralysis.
Role in Mythos: She is the personified cause of the nightmare and of hag-riding, blamed when a sleeper wakes crushed and helpless or a horse is found sweated and exhausted at dawn.
Relation to Humans: She preys on sleepers, slipping into the house at night to ride them where they lie until near dawn. People guarded against her with holed stones, cold iron, and charms hung over the bed and stable door, and in some places accused and attacked living women they believed rode them.

The weight comes first. A sleeper half surfaces in the dark and feels something settle onto the chest, low and solid, pressing the breath down into the ribs. The eyes open on the ordinary room, the shutter, the cold grate. But the body will not answer. Arms, legs, tongue, all of it locked, and while the weight bears down something leans close in the dark, watchful and wanting harm. The sleeper cannot move and cannot make a sound. Then, after a minute or an hour, the weight lifts, and the sleeper jerks upright gulping at the air, alone in a cold room with a hammering heart.

For most of English history this was the Night Hag, and she was the plainest account anyone had of one of the body’s strangest tricks. To be caught this way was to be hag-ridden, or simply hagged, the sleeper worked through the night like a horse under a cruel rider. What she left behind was the nightmare, and the word itself still carries her. The mare in it is not an animal. It comes from the Old English mære, a crushing night-spirit, cousin to the Old Norse mara and the German Mahr, a whole family of beings across the Germanic world whose single trade was to sit on the sleeping and press the breath out of them. When Samuel Johnson set the word down in his dictionary, he still defined the nightmare plainly as a morbid weight pressing on the breast in sleep.

She is hard to describe because she was rarely well seen. Most who met her met a weight and a presence and little else, a heaviness on the chest and the certainty of something malevolent bending over them in the dark. Where she took a shape it was usually an old woman, wizened and squat and impossibly heavy for her size, though she could come as an animal or a formless press of shadow. The horror was never in her face. It was in the pinning, in the exact helplessness of a waking mind inside a body that has stopped taking orders.

No single story made her. She is the explanation reached for after the fact, and the explanation shifted with the parish. In one telling she is a witch, a living woman of the village whose spirit slips out at night to ride her neighbours. In another she is a fairy, or a returning dead thing, or an incubus in all but name, the same demon the churchmen blamed for pressing on sleepers and fathering monsters. What stayed constant was the method. Whatever she was, she came in through the keyhole or the gap under the door, crossed the room without a sound, and settled her weight where a person was most helpless.

She did not confine herself to people. A farmer who came to the stable at dawn and found a horse trembling and dark with sweat, its flanks heaving and its mane worked into tight filthy knots, knew what had happened in the night. The beast had been hag-ridden, run to exhaustion across country by something that weighed nothing and left no track, and the tangled mane, the elf-locks, was the mark of her hands. A horse that should have spent the night resting had instead carried the hag until cock-crow.

Against her, people reached for iron and stone. The commonest guard was a holed stone, a flint worn through by water, hung on a cord over the bed or at the stable door or tied round a horse’s neck. Cold and heavy in the hand, the hole was the whole point, a gap she could not pass. An open knife or a blade of steel laid by the pillow served the same end, and so did salt, and charms cut into the wood of the bedstead. The reasoning was old and consistent. She was a creature of thresholds and gaps, and the right object at the threshold shut her out.

The belief was not a quaint thing kept at arm’s length. In the villages of Somerset and Dorset in the nineteenth century it was urgent and literal. One Somerset man in 1862, plagued night after night, went to bed with a board studded with nails bound to his chest, so that when the hag came to sit on him again she would not, as he put it, sit there long. Others took a grimmer route. Convinced that a particular old woman in the parish was riding them, they cornered her and drew her blood, scratching her to break her power, and several were prosecuted for the assault. The hag pressing on the chest at night and the frightened neighbour with a pin were two ends of the same belief.

The tradition crossed the Atlantic with English settlers and lodged deep in Newfoundland, where to be attacked this way was still, within living memory, to be hagged or hag-rid. The folklorist David Hufford went there to study it and found the experience astonishingly stable, the same account given by people who had never read a book of folklore and could not have borrowed the details from one another: the paralysis, the pressure, the vivid sense of a presence, the fear. He put the number who go through it at least once in their lives at something like one in seven. The hag, in other words, never really left. The name and the reasoning changed from place to place, but the weight on the chest in the dark stayed exactly the same.

Her power was total for the few minutes she held it. A grown person could be pinned flat and silenced without a mark left, unable to lift a hand or raise a shout, ridden as easily as the horse in the stall. She passed locked doors, weighed nothing yet crushed like a millstone, and chose the one moment when her victim had no defence. But her power was also narrow and brittle. She could not cross a holed stone or pass cold iron. Her hold broke at a touch from outside, at the first grey of dawn, at the cock’s crow. Draw the blood of the woman behind her and the whole spell was supposed to fail. For all the terror of the pinning, she was a creature of the dark and the threshold, and light, iron, and a stone with a hole in it were enough to keep her on the far side of the door.

Frequently Asked Questions

What is the Night Hag?

The Night Hag is a spirit of English folklore blamed for the experience of waking at night unable to move, with a crushing weight on the chest and the sense of an evil presence in the room. She was the traditional explanation for what is now called sleep paralysis. Depending on the region she was thought of as a witch, a fairy, a demon, or a returning dead thing.

What does it mean to be hag-ridden?

To be hag-ridden, or “hagged,” meant to be attacked by the Night Hag in your sleep, pinned and helpless as though ridden through the night like a horse. The word was also used for horses themselves, which were called hag-ridden when they were found sweating and exhausted at dawn with their manes tangled into knots. In both cases the hag was believed to have driven her victim to exhaustion while they could not resist.

Is the Night Hag the same as sleep paralysis?

The Night Hag is the folk explanation for sleep paralysis, the state in which a person wakes mentally alert but physically unable to move, often feeling pressure on the chest and a menacing presence nearby. The folklorist David Hufford, studying the tradition in Newfoundland, found the experience remarkably consistent across different people and cultures. He estimated that roughly one in seven people undergo it at least once in their lives.

How did people protect themselves from the Night Hag?

The most common protection was a holed stone, a naturally pierced flint hung over the bed, at the stable door, or round a horse’s neck, since the hag was believed unable to pass its hole. Cold iron such as an open knife by the pillow, along with salt and charms carved into the bedstead, were used the same way. In nineteenth-century Somerset and Dorset some people went further, attacking women they accused of hag-riding them in order to draw blood and break the supposed spell.

Where does the word “nightmare” come from?

The “mare” in nightmare is not a horse but the Old English mære, a night-spirit that sat on sleepers and pressed the breath out of them. The same being appears across the Germanic world as the Norse mara and the German Mahr, all of them tied to the crushing weight felt in sleep. The word outlived the belief, so that “nightmare” now means a bad dream rather than the creature once thought to cause it.