Sandman (Sleep No More)

"Sandmen"
Main aliases:	"Dust Men" "Sleep Men"
Biological type:	Sleep dust
Place of origin:	Human eyes
Notable individuals:	Patient Zero Gagan Rassmussen
Appearance:	Sleep No More

"Sandmen" was the name given by Clara Oswald and the Twelfth Doctor to a form of life created in the 38th century by human sleep dust after sleeping in a Morpheus pod And can break apart into piles of "sleep dust" that are also released into the air that can gather information (TV: Sleep No More)