Morpheus

[mawr-fee-uh s, -fyoos] /ˈmɔr fi əs, -fyus/
noun
1.
Classical Mythology. a son of Hypnos and the god of dreams.
Idioms
2.
in the arms of Morpheus, asleep.
Origin
1325-75; Middle English < Latin < Greek morph(ḗ) form + Latin -eus noun suffix; coined by Ovid, with allusion to the forms seen in dreams
Related forms
Morphean, adjective
British Dictionary definitions for Morpheus

Morpheus

/ˈmɔːfɪəs; -fjuːs/
noun
1.
(Greek myth) the god of sleep and dreams
Derived Forms
Morphean, adjective
Word Origin and History for Morpheus

name for the god of dreams in Ovid, son of Sleep, literally "the maker of shapes," from Greek morphe "form, shape, figure," especially "a fine figure, a beautiful form; beauty, fashion, outward appearance," perhaps from PIE *merph-, a possible Greek root meaning "form." Related: Morphean. Cf. Morpho, an epithet of Aphrodite, literally "shapely."

Morpheus in Culture
Morpheus [(mawr-fee-uhs)]

A Roman god of sleep and dreams.

Note: Someone who is “in the arms of Morpheus” is asleep.
Note: The narcotic morphine was named after Morpheus.