Numbers 24:4

New English Translation

⁴the oracle of the one who hears the words of God,
who sees a vision from the Almighty,
although falling flat on the ground^[a] with eyes open:^[b]

Numbers 24:4 tn The phrase “flat on the ground” is supplied in the translation for clarity. The Greek version interprets the line to mean “falling asleep.” It may mean falling into a trance.
Numbers 24:4 tn The last colon simply has “falling, but opened eyes.” The falling may simply refer to lying prone; and the opened eyes may refer to his receiving a vision. See H. E. Freeman, An Introduction to the Old Testament Prophets, 37-41.

New English Translation (NET)