In his prayer from inside the fish, what did Jonah say was wrapped around his head?

Answer: Seaweed

Jonah prayed that the waters engulfed him, the depths closed around him, and seaweed wrapped around his head.

“The waters engulfed me to take my life; the watery depths closed around me; the seaweed wrapped around my head.”— Jonah 2:5 (BSB)