Tradition: Japanese Mythology
Alternative Names: Futon no Kai, Futon Monster
Category: Object
The Myth
The Futon Monster is a supernatural phenomenon associated with old bedding, particularly futons that may have belonged to the dead or been acquired second-hand. Accounts of these strange occurrences were recorded in Japanese collections of modern folklore. The stories emerged in a context where material shortages made second-hand goods necessary, and objects previously used by unknown owners could carry disturbing histories.
One account comes from Jōsaka, Miyako District, Okinawa Prefecture, during the shortages following the Pacific War. A couple who had finally been blessed with a son after ten years of marriage held a large birthday celebration for him. During the banquet, a strange cry came from the back of the room, where the child had been laid down. His parents rushed over and found the futon shaking violently, with their exhausted son trapped underneath. The father tore it away and threw it into the yard, shouting that it was a monster. The futon continued to thrash about, and the villagers struck it with sticks before cutting it into pieces with sickles. Even the scraps kept moving until they suddenly fell still. Upon examining the remains, the villagers discovered human fingernails sewn into all four corners, with hair wound around them. The couple had bought the futon from a street vendor, and people suspected it had been unearthed by grave robbers and possessed by an evil spirit. The celebration ended in tragedy, and the child died the following day.
Two other accounts were recorded in Tokyo. In Kōtō Ward in 1946, a person who bought an old futon and slept beneath it repeatedly experienced a feeling of constriction and suffered nightmares. An examination revealed bloodstains inside the cotton. Police discovered that the previous owner had murdered someone inside the futon, replaced its outer covering, and sold it to a second-hand shop. The strange nightly experiences were attributed to the murdered person’s spirit seeking justice and proper memorial rites. In Machida, another person bought an inexpensive futon for a funeral and began using it for sleeping. Every night, an oppressive weight seemed to press down on the bedding, until the sleeper heard a woman’s voice and saw a sorrowful woman staring at him. Terrified, he abandoned the futon.
These accounts suggest that the Futon Monster is less a single creature with a fixed appearance than a category of supernatural disturbances associated with bedding. The stories reflect the unease surrounding objects previously used by the sick or dead, especially when poverty and shortages made it difficult to obtain new possessions. A futon could become a vessel for the lingering presence of a deceased person, carrying memories of suffering, murder, or an unfulfilled need for remembrance. Its ordinary domestic function made the supernatural occurrences all the more disturbing.
Sources
“Futon-kai.” 新版TYZ 妖怪図鑑 (New TYZ Yokai Encyclopedia). https://tyz-yokai.blog.jp/archives/1072946883.html