(n.) Profound sleep from which a person can be roused only with difficulty.

acedia aloofness apathy ataraxia ataraxy benumbedness blah blahs catalepsy coma comatoseness detachment disinterest dispassion dullness encephalitis lethargica heartlessness hebetude high hopelessness inappetence indifference insouciance lack of appetite languidness lethargicalness lethargy listlessness narcohypnosis narcolepsy narcoma narcosis narcotic stupor narcotization nod nonchalance numbness passiveness passivity phlegm phlegmaticalness phlegmaticness plucklessness resignation resignedness sedation shock sleeping sickness sloth sluggishness soporifousness spiritlessness spunklessness stupefaction stupor supineness swoon thanatosis torpidity torpidness torpor trance unconcern withdrawnness