Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun sleeplessness

1 sense of sleeplessness

Sense 1
wakefulness, sleeplessness -- (a temporary state in which you are unable (or unwilling) to sleep; "accept your wakefulness and sleep in its own contrary way is more likely to come")
       => temporary state -- (a state that continues for a limited time)