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WordNet-Online 
 Definitions from WordNet
Noun sleeplessness has 1 sense 
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| Definitions from the WebSleeplessnessNoun: The state of being unable to sleep or experiencing a lack of quality sleep. Example Sentence: Jim suffered from chronic sleeplessness, often lying awake for hours at night. Adjective: Describing the state or condition of being sleepless. Example Sentence: Mary's sleeplessness nights made her feel exhausted and fatigued during the day. Related Products on Amazon: | ||||
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