Hypnokinesis

Hypnokinesis (from the greek word hypnos, meaning sleep) also known as Sleep Manipulation; is the ability to manipulate sleep patterns. This can be used to induce intstantaneous sleep on biotic subjects, or to induce perpectual insomia (which is bad for your health). One with this ability can remove the need to sleep from any biotic subject, or make them dreadfully tired all the time. One can also cause the subject to sleep forever in a comatose like state and can even determine how deep a sleep or how long a person or people has.

The Last Olympian
About two months before the start of the book, Grover while in Central Park sees Morpheus walking around and puts Grover to sleep for two months before Percy and Nico wake him up. Later, right before the Battle of Manhattan, Morpheus places a large sleeping spell over the entire island of Manhattan causing all the humans to fall alseep (but demigods and monsters were unaffected).

The Lost Hero
When Annabeth walks into Hypnos' cabin to get help from Clovis, Jason finds himself falling asleep and Annabeth warns that if he falls asleep inside the cabin, he may never wake up.

Abilities
The general abilities of a Hypnokinesis include:


 * Put people to sleep


 * May be able to manipulate dreams, since dreams are involved with sleep.

Users of Hypnokinesis

 * Hypnos
 * Morpheus
 * Clovis