somnolency
acedia
apathy
boredom
doziness
drowsiness
dullness
enervation
ennui
fatigue
heaviness
hebetude
hypersomnia
inanimation
indifference
jadedness
lackadaisicalness
languidness
languishment
languor
languorousness
lassitude
lenitude
lentor
lethargy
lifelessness
listlessness
oscitancy
oscitation
pandiculation
passivity
phlegm
satedness
sleepiness
sloth
slothfulness
slowness
sluggishness
stretching
stupefaction
stupor
supineness
torpidity
torpidness
torpitude
torpor
weariness
world-weariness
temporary state
oscitance
ataxia
casualness
daydream
disorientation
euphoria
faintness
giddiness
haziness
headedness
imaginativeness
insomnia
langour
myalgia
palpitation
sedation
tachycardia
tremulo
xerostomia