Tradition / Region: Netherlands (throughout the Netherlands)
Alternate Names: Zandmannetje
Category: Sleep spirit / household spirit
The Myth
Klaas Vaak, also known as the Zandmannetje, is a figure believed to bring sleep to children. He is already mentioned in a poem from 1651, where it is said that he gently strokes people’s eyelids to make them yawn and fall asleep. In this early form, his presence is soothing and quiet, associated with the natural onset of sleep.
By 1767, the name Zandmannetje appears for the first time in a lullaby. In this version of the belief, Klaas Vaak causes sleep by sprinkling sand into people’s eyes, making them rub their eyelids. In the morning, the grains of sand are said to remain in the corners of the eyes as proof of his visit.
In a darker German version recorded in 1816, the Sandman is described as a frightening figure. Children were told that if they refused to go to bed, he would throw so much sand into their eyes that they would bleed from their sockets. He would then collect their eyes in a sack, carry them to the moon, and feed them to his own children. In this tradition, he becomes associated with the Man in the Moon and functions as a figure used to frighten children into obedience.
Like Sinterklaas, Klaas Vaak is sometimes said to enter homes through the chimney. While it is not known for certain whether the terrifying version of the Sandman was used in the Netherlands, the belief that Klaas Vaak visits at night to bring sleep was widespread and enduring.
Interpretive Lenses
Religious Readings
Philosophical Readings
Psychological Readings
Esoteric Deep Dive
- Hermetic Deep Dive