Morpheus was an alias of Dream, the protagonist of the D.C. comic The Sandman, written by Neil Gaiman.
Morpheus was the title of an episode in the 10th Season of Stargate SG-1, during which the team falls ill with a sleeping sickness.
There were two video games named Morpheus. One was released in 1987 and was a shoot em' up style game. The other was released in 1998, and was a first person adventure game. Mopheus D. Duvall was a character in the video game, Resident Evil: Dead Aim.
Two types of software share the name Morpheus: a file sharing program, and a morphing and digital compositing program.
Morpheus was the god of dreams in Greek mythology. He was a winged daemon, but he could take human form, and appear in dreams. The last time the name appeared in the Social Security name database was in 2000, when it was given to 5 boys.