#5258 ὕπνος hupnos {hoop'-nos}

 from an obsolete primary (perhaps akin to G5259 through the idea
    of subsilience); TDNT - 8:545,1233; n m

—Greek Word Study (Transliteration-Pronunciation Etymology & Grammar)

 1) sleep

—Thayer's (New Testament Greek-English Lexicon)

—Strong's (Greek Dictionary of the New Testament)

—NAS Exhaustive Concordance of the Bible with Hebrew-Aramaic and Greek Dictionaries

 AV - sleep 6; 6

—Exhaustive Concordance (KJV Translation Frequency & Location)