Sleeping Gas (すいみんガス, Suimingasu?), also known as SleepGas, Gas, Sleep Gas, and Hypno Gas, is a recurring ability in the series. It is primarily used by enemies to inflict the Sleep status on one party member or the entire party.
Sleeping Gas is an ability used by Calca through the Jive command, which randomly inflicts Sleep on either one enemy or all enemies. It is also used as an enemy ability by Dr. Lugae, Left Foot, Marquis Malboro, and Right Foot, and will only inflict Sleep on a single target.
SleepGas is a status inflicting ability that has 15 uses, it also increases a Robot's HP by 9. It inflicts Slep to one group of enemies. This ability can be used by Champgno, DarkRose, F-Flower, Mushroom, P-Flower, Shiitake, SunPlant, Toadstol, and Sho-gun.
Sleeping gas is an oneirogenic general anaesthetic that is used to put subjects into a state in which they are not conscious of what is happening around them. Incapacitating agent is a related general term for "knockout gases" or "KO gas" that ideally render a person unable to harm themselves or others, regardless of consciousness.