
The Svefnthorn, or the Sleep Thorn, is a Viking symbol that is said to induce a deep sleep. It is referenced in several Norse sagas and in folkloric magic formulas recorded after the Viking Age. The exact appearance of the Sleep Thorn is unknown, as it is described and depicted differently across sources. The symbol is said to have been used to put adversaries into a slumber from which they would have trouble awakening.
| Characteristics | Values |
|---|---|
| Name | Svefnthorn (Old Norse svefnþorn, sleep thorn, pronounced SVEFN-thorn) |
| Origin | Viking Age |
| Purpose | To induce sleep |
| Visual Form | Not clear, varies from source to source |
| Usage | Varied, but used to put adversaries into a deep sleep |
| Spell | Take the heart sac (pericardium) of a dog; pour pickling broth into it. Then dry it for thirteen days long, in a place where the sun does not shine on it, and when the person you wish to cast the spell on is asleep, hang this in the house over them without their knowledge. |
| Symbolism | Power, magic, protection, danger, transformation, pain, personal growth, adversity |
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What You'll Learn

The Svefnthorn is a Viking symbol
The Svefnthorn, or the Sleep Thorn, was a Viking symbol that could induce a deep sleep. The term comes from Old Norse "svefnþorn" or "svefnorn", meaning sleep thorn, and is pronounced "SVEFN-thorn". It is referenced in several Norse sagas and in folkloric magic formulas recorded after the Viking Age.
The Svefnthorn is mentioned repeatedly in Norse mythology, but its exact symbolism and visual form are unknown. It is sometimes depicted as "four harpoons", and sometimes as a vertical line with a diamond shape at the bottom. This latter symbol could be an Isaz rune with an Ingwaz rune below it.
The symbol is used to put adversaries into a deep sleep, from which they would have trouble awakening. In the Saga of the Volsungs, Odin used a Svefnthorn to put Brunhild into a slumber, from which she could not awaken until someone crossed the circle of fire he had created around her. In Gongu-Hrolf's Saga, Vilhjalmr stuck a Svefnthorn into Hrolf's head, rendering him unconscious until the following day when a horse rolled him around and the thorn fell out.
The Svefnthorn was a powerful magical tool, and its use varied from source to source. It is not clear how one would apply it to a person, but it was likely used as a physical object, a spell, or a symbol to be placed near someone while they slept.
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It features in Norse sagas and folklore
Sleep thorn is a concept that appears in Norse sagas and folklore, where it is often associated with magical sleep or a trance-like state. The term "sleep thorn" (Old Norse: svefnþorn) is used metaphorically to describe a magical object or spell that can induce sleep or a trance.
In Norse mythology and folklore, the concept of the sleep thorn is often linked to Odin, the god of wisdom, war, and magic. Odin is described as having the power to send people into a trance-like sleep with his breath, and this state is sometimes referred to as being pierced by Odin's sleep thorn. This idea is mentioned in the poem "Sigrdrífumál," from the Poetic Edda, where the valkyrie Sigrdrífa teaches the hero Sigurd magical runes, including one that can be used to wake a man from the sleep caused by a sleep thorn.
The sleep thorn also appears in the saga of King Olaf Trygvason, where it is described as a magical object that can induce a deep sleep. In this saga, the king is given a magical drinking horn that puts him into a trance-like sleep, during which he has prophetic visions. The horn is described as being marked with a sleep thorn, emphasizing its magical sleep-inducing properties.
In addition to its association with Odin, the sleep thorn may also be connected to magical sleep induced by other supernatural beings, such as witches or giants. In some stories, the sleep thorn may represent a magical spell or charm, rather than a physical object, that can be used to cast someone into a trance or deep sleep. This reflects the importance of magic and supernatural forces in Norse mythology and folklore.
The concept of the sleep thorn adds a layer of mystery and enchantment to Norse sagas and folklore. It highlights the power of magical sleep and trance states, which could be induced by divine breath, magical objects, or supernatural spells. By exploring the sleep thorn, we gain insight into the rich imagination and spiritual beliefs of Norse culture, where the boundaries between the natural and supernatural were often blurred.
Through its appearance in Norse sagas and folklore, the sleep thorn continues to capture the imagination, inspiring artists, writers, and modern pagans who draw upon Norse mythology for spiritual and creative practices.
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It induces a deep sleep
The Svefnthorn, or the Sleep Thorn, is a Viking symbol that induces a deep sleep. It is referred to in Old Norse as "svefnþorn" or "svefnorn", and is pronounced as "SVEFN-thorn". The Sleep Thorn is mentioned repeatedly in Norse mythology and features in several Norse sagas and folkloric magic formulas recorded long after the Viking Age.
The exact appearance of the Sleep Thorn is unknown and varies from source to source. In some tales, it is described as a physical object, while in others, it is depicted as a symbol or spell. In the ninth spell of the Huld Manuscript, an early modern book of Icelandic spells, the Sleep Thorn is referenced as a symbol that is "carved on oak and laid under the head of the one who is supposed [to sleep]".
The Sleep Thorn was believed to put people into a deep slumber, from which they would have great difficulty awakening. In Gongu-Hrolf's Saga, Vilhjalmr stuck a Sleep Thorn into Hrolf's head, rendering him unconscious until the following day when a horse rolled him around and the thorn fell out. Similarly, in The Saga of the Volsungs, Odin used a Sleep Thorn to make Brunhild sleep until someone crossed the circle of fire he had created around her.
The Sleep Thorn was also used to induce sleep in others for malicious purposes. In one tale, Queen Olof struck King Hrolf with the Sleep Thorn to make him unconscious so that she could play tricks on him and his men.
The Sleep Thorn was likely perceived as a powerful magical tool by the Vikings, who used it to ensure a good night's rest and to protect themselves from danger.
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It is mentioned in the Huld Manuscript
The Sleep Thorn, or Svefnthorn, is a symbol that features in several Norse sagas and folkloric magic formulas recorded long after the Viking Age. It is said to be a powerful magical tool that can put someone into a deep sleep. The symbol's visual form varies considerably from source to source, and there is no clear consensus on how it would be applied to a person.
The Huld Manuscript, also known as the Dark Manuscript, is a mid-19th-century compilation of Icelandic charms, staves, and magic. It was created by Geir Vigfússon in the tiny Icelandic town of Akureyri between 1857 and 1860. The manuscript is considered one of the most famous examples of false advertising in history, as it was presented as a collection of knowledge from the Viking era, when in reality, it was created long after that period.
The Huld Manuscript contains a variety of magical symbols, including the Vegvisir symbol, which is said to guide the bearer and prevent them from losing their way in storms or bad weather. It also features a collection of runic alphabets and 30 "galdrastafir," or magic symbols and sigils.
While the Sleep Thorn is mentioned in various Norse sagas and tales, there is no specific reference to it in the Huld Manuscript that I could find. However, the manuscript does contain a wealth of information on Icelandic magic and symbolism, which may include references to sleep magic or similar practices.
The Huld Manuscript, despite being a relatively modern creation, holds cultural and historical significance. It represents the enduring fascination with Viking culture and the belief in magic that persisted into the 19th century. Additionally, the manuscript provides valuable insight into the interpretation and evolution of magical beliefs and practices in Nordic cultural history.
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Its exact form is unknown
The Svefnthorn, or the Sleep Thorn, was a Viking symbol that could induce sleep. The exact form of the Sleep Thorn is unknown. While it is mentioned in several Norse sagas and in folkloric magic formulas recorded long after the Viking Age, there are no sources that describe what the Sleep Thorn looked like exactly. Its visual representation varies considerably from source to source.
In some sources, the Sleep Thorn appears to be more like a physical object, such as a thorn that can be stuck into someone's head, causing them to lose consciousness. In Gongu-Hrolf's Saga, Vilhjalmr stuck a Sleep Thorn into Hrolf's head, rendering him unconscious until a horse rolled his body around, causing the thorn to fall out. In another tale, Queen Olof hit King Hrolf with the Sleep Thorn, causing him to fall asleep immediately and only regain consciousness the next day when the thorn fell out of his head.
Other sources describe the Sleep Thorn as a symbol or spell that can be used to induce sleep. The ninth spell from the Huld Manuscript, an early modern book of Icelandic spells, mentions the Sleep Thorn. It describes carving the symbol on oak and laying it under the head of the person who is supposed to fall asleep.
The Sleep Thorn was believed to be a powerful magical tool that could put someone into a long and deep sleep from which they would have great difficulty awakening. God Odin the Allfather used the Sleep Thorn to make the valkyrie Brynhildr fall into a deep sleep, from which she could only be awakened by someone disturbing her slumber or crossing a circle of fire that had been drawn around her.
While the exact form of the Sleep Thorn remains a mystery, it is clear that it was a significant symbol in Viking culture and Norse mythology, associated with inducing deep sleep and providing protection from danger during rest.
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Frequently asked questions
The Sleep Thorn, or Svefnthorn, is a Viking symbol that can induce a deep sleep. It features in several Norse sagas and in folkloric magical formulas recorded after the Viking Age.
The exact symbolism of the Sleep Thorn is unknown and varies from source to source. It is sometimes described as the "four harpoons" symbol, and sometimes as a vertical line with a diamond shape at the bottom.
The Sleep Thorn was used to put adversaries into a deep sleep. It could be stuck into someone's head or laid under their pillow. However, it is unclear how the Sleep Thorn's power could be broken—some sources say the spell would wear off on its own, while others say it required a specific action, such as crossing a fire circle.










































