Sleep (ability)

Sleep (スリプル, Suripuru) is a recurring White Magic spell that inflicts the status of the same name. It is usually one of the earliest White Magic spells obtained in the game.

Final Fantasy
Sleep, known as SLEP in the Famicom release and Sleep1 in the Origins release, is a Level 1 Black Magic spell that can be bought in Cornelia and can be learned by the Black Mage, Black Wizard, Red Mage, Red Wizard, and Ninja Job classes. It inflicts Sleep on all enemies, however it has a low success rate. In the Dawn of Souls and 20th Anniversary Edition release the spell costs 3 MP to cast.

Final Fantasy II
Sleep is a Black Magic spell which puts one or all enemies to Sleep. The success rate increases with the spell's level. Any character can learn Sleep by having them use the Sleep Tome (called the Sleep Scroll in the Origins release).

Final Fantasy VII
Sleepel is automatically on the Seal Materia and costs 8 MP to cast.

Final Fantasy VIII
Sleep can be drawn from several early enemies and can be Junctioned to stats.

Final Fantasy IX
Sleep is a Black Magic spell available only to Vivi, and is learned from the Flame Staff.

Final Fantasy X-2
Sleep is part of the Dark Knight's Arcana skill set, however it is not learned via the dressphere, only becoming available when equipping a relevant Garment Grid or Accessory.

Final Fantasy XI
Sleep is a Black Magic spell available to Black Mages, Red Mages, and Dark Knights. It is the first, fastest casting, shortest in duration, and easiest of all Sleep spells to obtain. It may be purchased from a vendor for 2,600 gil or less, depending on fame. Upgrade versions include Sleep II, Sleepga, and Sleepga II.

Final Fantasy XII
Final Fantasy XII includes two levels of the spell as Green Magick: Sleep (single target) and Sleepga (multiple targets). This game also introduced the very first Item specifically used to awaken characters: the Alarm Clock.

The International Zodiac Job System version lists both Sleep and Sleepga as Black Magick License 4 and 10 respectively. Sleep costs 30 LP and consumes 10 MP while Sleepga costs 90 LP and consumes 26 MP. Both cannot be bought; Sleep is found in a chest in the Dreadnought Leviathan's Starboard Section and Ogir-Yensa Sandsea Platform 1 East Tanks, while Sleepga is found in Giruvegan's Haalmika Water-Steps.