Multiple choice general knowledge Fear of sleep Selachophobia Theophobia Somniphobia Papaphobia Reveal answer Fill a bubble to check yourself C Correct answer Explanation Somniphobia is the fear of sleep or falling asleep. The prefix 'somni-' comes from Latin 'somnus' meaning sleep. Selachophobia is fear of sharks, theophobia is fear of gods/religion, and papaphobia is fear of the Pope.