That last one, I can, and have, slept through a 4.5in naval gun firing from a similar range. Was napping on the waist and there she blew, my boss was watching getting ready to laugh his guts out, but nope, I slept through about five rounds, before I looked up with a pissed off expression and headed below decks. Don't really remember it, because I also perfected the art of only half waking up...
