How long does it take for sleep deprivation to induce the hallucinations?
If you get to that point, you’ve gone too far! I haven’t had sleep dep. hallucinations since frogman school, adn then people are more or less watching you. My only solo sailing was from Panama to Hawaii to Guam, and that is so far out of shipping lanes (except for leaving Panama, but you’re well rested when leaving) that you just don’t worry about ships. Crossing the Caribbean solo (like this teen) would for sure be extremely risky, and the radar alarms would be a must.