Sleep - Target cannot perform actions. Cannot evade attacks. Target wakes up if hit with physical attack.

Sleep [!Black] - 90% Hit Rate.

Black Mage | Red Mage

World 1, Buyable at Carwen, Karnak, Crescent for 290 Gil

Black Mage | Blue Mage | Freelancer | Mime | Red Mage | Summoner | Time Mage

World 3, Wonder Rod

Sleep Sword [!Spellblade] - Always Procs.

Mystic Knight

World 1, Buyable at Karnak, Crescent for 290 Gil

Dream Harp [Weapon] - 99% Proc Rate. Fails against Heavy enemies.

Bard | Freelancer

World 2, Buyable at Regole, Bal Castle, Quelb for 1600 Gil
World 2, Barrier Tower - Traveler (Rare Drop, Rare Steal)

Time Slip [!Blue] - 90% Hit Rate. Also inflicts Old.

Blue Mage

World 2, Barrier Tower - Traveler
World 2, Exdeath's Castle (Boss) - Gilgamesh
World 3, Phoenix Tower - Cherie (Must be Confused/Controlled)
The Rift, Dimensional Castle (Boss) - Azulmagia

Beastmaster

World 2, Barrier Tower - Trickster
World 3, Overworld (Moore Area) - Mykale

Sleep Blade [Weapon] - 50% Proc Rate.

Blue Mage | Freelancer | Knight | Mystic Knight | Red Mage

World 2, Buyable at Regole, Bal Castle, Quelb for 5600 Gil