sleeplessness

== English == === Etymology === From sleepless + -ness. === Pronunciation === === Noun === sleeplessness (usually uncountable, plural sleeplessnesses) Lack of sleep; the property of being sleepless; the inability to sleep, insomnia. Synonym: insomnolence Antonyms: sleep, sleepiness, somnolence ==== See also ==== ==== Translations ====