Noah Webster's Dictionary (n.) State of being drowsy.

Multi-Version Concordance Drowsiness (2 Occurrences) Romans 11:8 And so Scripture says, "God has given them a spirit of drowsiness--eyes to see nothing with and ears to hear nothing with--even until now." (WEY) Proverbs 23:21 for the drunkard and the glutton shall become poor; and drowsiness clothes them in rags. (WEB KJV JPS ASV DBY WBS YLT NAS RSV NIV)