Esther 6:1

Overview - Esther 6
Ahasuerus, reading in the chronicles of the good service done by Mordecai, takes care for his reward.
Haman, coming to sue that Mordecai might be hanged, gives counsel that he might do him honour.
12 Complaining of this, his friends tell him of his final destiny.
Treasury of Scripture Knowledge

Esther 6:1  (King James Version)
On that night could not the king sleep, and he commanded to bring the book of records of the chronicles; and they were read before the king.

that night
5:8 Genesis 22:14 ; 1 Samuel 23:26 1 Samuel 23:27 ; Isaiah 41:17 ; Romans 11:33

could not the king sleep
Hebrew the king's sleep fled away.
Daniel 2:1 ; 6:18

the book of records
As chronicles were composed among the Persians, a more instructive and interesting work could not be brought before the king; because they were all written in verse, and were generally the work of the most eminent poets of the empire.
2:23 Malachi 3:16