Then the king went to his palace and passed the night fasting, unable to sleep or eat for worry about the fate of Daniel; neither were instruments of music brought before him, rather, "neither were concubines brought to him"; and his sleep went from him, he was in genuine distress, decidedly ill at ease on account of the course into which he had been drawn.
Related Commentaries of Daniel 6:18
Daniel 6:18
18 Then the king went to his palace, and passed the night fasting: neither were instrumentsc of musick brought before him: and his sleep went from him.