Inguma
Inguma (Mauma in Baigorri) is the god of dreams in Basque mythology and religion.Theresa Bane, Encyclopedia of Beasts and Monsters in Myth, Legend and Folklore, 2016 He is regarded as a malevolent force who enters houses at night and plagues residents with nightmares, sometimes killing them. He is mentioned in Ofrenda a la tormenta (Offering to the Storm), the third film in the Baztán trilogy by Dolores Redondo.