Sleep is a Status Ailment in Kingdom Hearts Unchained χ / Union χ. It is represented by an icon with a cloud and three Z's. When afflicted with Sleep, the Player will skip a set amount of Medals. Enemies will not attack. However, attacking them while they are asleep will remove the Sleep status. Certain enemies, like the White Rose will start a battle asleep. When afflicted with Sleep, the Player gets a white glow.
Skills that inflict Sleep
Special Attacks that inflict more damage to sleeping targets
Enemies that inflict Sleep