Synonyms for lack of sleep

Synonyms for lack

absence (failure, failing, fault >>)
shortage (scarcity, dearth, paucity >>)
deficiency
inadequacy (disadvantage, weakness, shortcoming >>)
need
deficit
miss
want
missing

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Synonyms for of

on (to, in, from >>)
concerning
towards

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Synonyms for sleep

bed (slumber, nap, dream >>)
rest
fall asleep
eternal sleep

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