Then the mariners were afraid, and cried every man unto his god, and cast forth the wares that were in the ship into the sea, to lighten it of them. But Jonah had gone down into the lower part of the ship; and he had lain down, and was fast asleep.
All Commentaries on Jonah 1:5 Go To Jonah 1
LXX: "Now Jonah went down to the heart of the boat and slept and snored". According to the history of this passage it describes the peace of the spirit of the prophet. He is troubled by the storm, or by the dangers; he just keeps the same manner of spirit when the storm is imminent, as when the weather is calm. The others though cry out to their gods, and cast the cargo overboard: each man to his own. But Jonah is so peaceful, so calm, his spirit is so at rest that he goes down to the heart of the ship to enjoy a peaceful sleep. Indeed we can also say: he knows he is a fugitive and a sinner, because he has not obeyed the commands of the Lord. It is because all the other men do not know why there is a storm that Jonah knows that he alone is the cause of it. This is why he goes down to the interior of the ship and hides himself sadly, so that he does not see the waves, like the avengers of God, rise up against him. And if he sleeps, this is not necessarily a sign of his security, but of worry. For we read that the apostles gave in to sleep on account of great sadness at the sight of the Lord's suffering. For if we interpret the sleep of the prophet as a sign, his terrible torture, they represent a man who has fallen asleep from the drug of his wickedness: not only has he fled from God but moreover he ignores the wrath of God as his spirit is clouded by a sort of madness. He sleeps therefore in a kind of false security and his deep sleep sounds out through his nostrils.