Some manipulations and Potions induce sleep on the target. The Air element clouds their mind and overrides normal sleep/wake patterns. The body senses this and moves to correct the imbalance, so this kind of sleep is usually short-lived.
Characters who are afflicted by this status effect are considered to be Incapacitated and Stable with their current HP. Characters put to sleep this way will not wake up due to the normal sounds around them at the time of their affliction. However, shaking them, hitting them with an attack, being hit by an area of effect manipulation, or some similar interaction will wake them. Attacks against sleeping characters are made with ADV and any hit is automatically a critical hit.
Sleep: Air 5