Sandman

Stories tell of the Sandmen as either benevolent beings who help the tired find rest or a malevolent force that can put a whole town to sleep. The Sandman is an amorphous pile of living sand that can choose to take a vaguely humanoid shape.

Otherworldly Entities: Sandmen are not native to the Material Plane. They are known to come from the Plane of Dreams, but some sages theorize they may also be native to the Plane of Time. They can only be summoned to the Prime, once there they are in the Prime they are able to summon others from the Plane of Dreams.

Interactions on the Prime: Sandmen tend to not want to stay on the Prime for long. When they first enter the new surroundings they are known to treat it as a giant playground of fun to have. After getting their fill of "the lulz" as it is known they start to become more aggressive and mean spirited.

Returning Home: While the Prime starts out fun all Sandmen eventually long to return home to dream what dreams may come. When a Sandman is acting very aggressive and putting multiple people to sleep at once they are likely trying to find someone who slumbers so deep that their dreams touch the Plane of Dreams.

Sandman Glass: If a Sandman is converted into glass the glass retains the ties the Sandman had with the Plane of Dreams. The glass is treated as magical and, while the effects are not fully explored, can aid in spells and rituals that involve dreaming.