Originating from Northern European lore, he brings good dreams by sprinkling magical sand onto the eyes of children while they sleep at night. The rheum in one's eyes upon waking is believed to be the result of the Sandman's work the previous evening.
"A faerie from rural Germany, rumored to put people to sleep using the magic sand he carried in his bag. If a victim resisted, he would sit on their eyelids to force them to sleep."
—Shin Megami Tensei: Strange Journey compendium
Sandman demons are the pivotal players in an extra mission called Sandman's backup bag. In the basement of Sector Antlia, the protagonist can find a Sandman who, after explaining that the bag it carries is figuratively its "soul," asks the protagonist to get back his lent bag. After the protagonist encounters a Sandman and asks for it back, it is revealed the other Sandman had simply forgotten to return it. Afterwards, a Chakra Pot is rewarded when the protagonist delivers it to the original Sandman.
"A faerie from rural Germany, rumored to put people to sleep using the magic sand he carried in his bag. If a victim resisted, he would sit on their eyelids to force them to sleep. For bad children who still wouldn't sleep, he would scoop their eyes out."
—Shin Megami Tensei IV Apocalypse compendium
Sandman appears in the Shinobazu Pond area of Ueno, sometimes accompanied by Oni. It can teach the Dream Needle, Zan and Stun Needle skills during Demon Whisper.
"A fairy in German folklore who carries a bag of magical sand, which puts humans to sleep when thrown into their eyes. If the victim resists, the Sandman will sit on their eyelids."
—Persona 5 background
Sandman is the fourth Persona of the Magician Arcana and can be found as a Shadow in Futaba's Palace and the Akzerriyuth area of Mementos, with the title "Envoy of Slumber." He is the first Persona to learn the Dormin Rush, Null Sleep and Magarula skills, as well as the only Persona to naturally learn Sleep Boost. When itemized using Electric Chair execution, Sandman yields a Sleep Boost skill card.
"A fairy in German folklore. He cannot be seen by human eyes but is rumored to carry a bag of magical sand, which puts humans to sleep when thrown into their eyes. If the victim resists, the Sandman will sit on their eyelids forcing them to sleep."