Michel de Montaigne

“ In the naval engagement that Augustus won of Sextus Pompeius in Sicily,
just as they were to begin the fight, he was so fast asleep that his
friends were compelled to wake him to give the signal of battle: and this
was it that gave Mark Antony afterwards occasion to reproach him that he
had not the courage so much as with open eyes to behold the order of his
own squadrons, and not to have dared to present himself before the
soldiers, till first Agrippa had brought him news of the victory
obtained. ”

“ But as to the young Marius, who did much worse (for the day of
his last battle against Sylla, after he had marshalled his army and given
the word and signal of battle, he laid him down under the shade of a tree
to repose himself, and fell so fast asleep that the rout and flight of
his men could hardly waken him, he having seen nothing of the fight) , he
is said to have been at that time so extremely spent and worn out with
labour and want of sleep, that nature could hold out no longer. ”