must've been a very deep sleeper....
first off, the dude sleeps through his sailboat ramming into a cargo container hard enough to rip a huge gash in the side. he doesn't wake up until the next morning when there's already a foot of water in his boat.
later, he sleeps through his raft flooding. he doesn't wake up until he's basically lying in 6 inches of water and sopping wet.
later still, he sleeps through a massive barge cruising right by his raft. he doesn't wake up until the barge is basically right next to him.
wtf?