The power to lack the need for sleep.
The user has no need to sleep, allowing them to continue living through their lives without suffering health decline from sleep deprivation.
- May cause mental problems.
- Can still be knocked unconscious.
- Does not prevent gaining black circles under the eyes.
- May be unable to sleep, even if desired.
- May lack the ability to dream in every sense.
See also: The Sleepless
- Morpheus pods (Doctor Who)
- Mayan Sun Amulet (Gargoyles)
Professor Paradox (Ben 10) was displaced outside of time due to an "experiment gone wrong", rendering him biologically immortal, never aging nor needing sustenance and sleep.
Superman (DC Comics) has no need for food or sleep so long as he remains under the yellow sun's radiation, though he tends to eat and sleep out of habit.
The Endless (DC/Vertigo Comics) are a group of personifications of cosmic experience, thus they do not need to sleep.
Shinigami (Death Note) do not need to eat or sleep; doing so are signs of laziness and eating for joy.
After having a piece of shrapnel embedded in his brain John Domingo/Night Man (Malibu/Marvel Comics) can go for long periods without sleep.
Neil Cuddahy (Mutant X) has the ability to go without sleep while maintaining optimal mental faculties and health.
Gaara (Naruto) developed permanent insomnia out of fear that Shukaku would eat away his mind if he ever sleeps, though this furthered his mental instability.
Zetsu (Naruto) are self-sustained, as Black Zetsu is an artificial human created from Kaguya's materialized will, while White Zetsu are mutated humans.
Among many other abilities, the Dark One (Once Upon a Time) is embued with a lack of need to sleep. Rumpelstiltskin claims this was one of the reasons why he spun straw; to pass the time.
Mega Mewtwo Y (Pokémon) has the "Insomnia" ability, which is one of the abilities that prevent sleep.
Vigoroth (Pokémon) has the "Vital Spirit" ability, which is one of the abilities that prevent sleep. Vigoroth, in particular, can't sleep due to its blood boiling with energy.
Gems (Steven Universe) are an alien race of functionally-immortal polymorphic Gemstones. They do not need to eat, drink, sleep or breath.
When he lacked a soul, Sam Winchester (Supernatural) lost the need to sleep.
Vampires (Twilight) do not sleep.
Unlike his bookkeeper Sherry, Brago (Zatch Bell!) can go more than three days and nights without any rest.