Dream of the Endless is a fictional character, an anthropomorphic personification who first appeared in the first issue of The Sandman, written by Neil Gaiman and published by DC Comics. One of the seven Endless, who are inconceivably powerful beings older and greater than gods, Dream is both lord and personification of all dreams and stories, and all that is not in reality (which, in turn, Dream may define by his existence). He has taken many names, including Morpheus, Oneiros, Kai'ckul, and the Sandman, and his appearance can change depending on the person who is seeing him. Dream was named the sixth-greatest comic book character by Empire. He was also named fifteenth in IGN's 100 Top Comic Book Heroes list.

After the events of The Sandman: The Kindly Ones that led to Dream's death at the hands of the Furies, Daniel Hall becomes the new Dream.

Tom Sturridge is the principal actor portraying Dream in the television series The Sandman on Netflix; Ernest Kingsley Junior portrays him in the form of Kai'ckul, as perceived by his one-time lover Nada.

Dream is the protagonist and title character of the comic book The Sandman. The comic book grew out of a proposal by Neil Gaiman to revive DC's 1974–1976 series The Sandman, written by Joe Simon and Michael Fleisher and illustrated by Jack Kirby and Ernie Chua. Gaiman soon began constructing a treatment for a new series. Gaiman mentioned his treatment in passing to DC editor Karen Berger. When months later Berger offered Gaiman a comic title to work on, he was unsure his Sandman pitch would be accepted. Weeks later, Berger asked Gaiman if he was interested in doing a Sandman series. Gaiman recalled: "I said, 'Um ... yes. Yes, definitely. What's the catch?' Berger said: 'There's only one. We'd like a new Sandman. Keep the name. But the rest is up to you.'"

Gaiman crafted the new character from an initial image of "a man, young, pale and naked, imprisoned in a tiny cell, waiting until his captors passed away ... deathly thin, with long dark hair, and strange eyes". Gaiman patterned the character's black attire on a print of a Japanese kimono as well as his own wardrobe.

Dream is the ruler of the Dreaming where people go when they dream.

Daniel's father Hector Hall was a ghost revived by the two nightmares Brute and Glob, in Morpheus's absence, whereafter Hippolyta "Lyta" Hall and Hector's ghost lived in the dreams of a child named Jed Walker for two years. Upon Dream's return to the Dreaming, he destroyed the barrier that the two had created around the child's mind from the real Dreaming, imprisoned the two nightmares, released Hector's ghost, and restored Lyta to the waking world. Upon leaving Lyta, Dream revealed that he would someday claim their unborn son because he had spent much of his gestation in the Dreaming. Before Dream faced Lucifer, he paid another visit to the two and named the child Daniel. In one of the issues in Fables and Reflections, Daniel was regaled with stories by Cain, Abel, and Eve while Matthew the Raven watched.

In the Kindly Ones saga, Lyta incorrectly believed that Daniel had been 'abducted' by Dream, and took her grievances to the Furies, with whom she destroyed much of the Dreaming. Unknown to her, Daniel was abducted by Loki and Robin Goodfellow, and retrieved by the Corinthian and Matthew. At Morpheus' citadel, Morpheus transfers his role to Daniel and allows Death to take him. Daniel as the new Dream is an amalgam of a child and the Endless whom he represents. His speech is largely unchanged, but it is drawn with black font on a white background (as opposed to the direct contrasting style of the former self). He is still identified by the honorific "Dream of the Endless", but refuses the name of 'Morpheus'. He is inexperienced in government of the Dreaming and relies on Matthew for advice. As Dream, Daniel is a gentler and more merciful lord than Morpheus.