"Hypnos" is a short story by American horror fiction writer H. P. Lovecraft, penned in March 1922 and first published in the May 1923 issue of National Amateur.

Over time, the narrator's companion begins to speak of using their ability to transcend into the unknown as a way to rule the universe (via a set of drugs).

Opening his "physical eyes", the narrator wakes up and awaits the return of his friend, who awakes severely shaken and reticent, warning only that they must avoid sleep at all cost.

From then on, with the aid of drugs, the two avoid sleep, as each time they succumb, they both seem to rapidly age and are plagued by nightmares that the narrator refuses to explain.

Even at the end of the story, the fate and the narrator's relations themselves are left up to question, again, in keeping with Lovecraft's standard modus operandi.