On Mount Carmel, whom did Elijah taunt, saying perhaps he was sleeping and must be awakened?

Answer: Baal

At noon Elijah mocked the prophets of Baal: shout louder, for perhaps their god was deep in thought, on a journey, or asleep.

“And they took the bull that was given them, prepared it, and called on the name of Baal from morning until noon, shouting, “O Baal, answer us!” But there was no sound, and no one answered as they leaped around the altar they had made.”— 1 Kings 18:26 (BSB)