Sometimes he pushes his bowl as he eats, paying no attention to where he is going. And it ends up, conveniently, beside the wool blanket upon which he sleeps. Given the circumstances, upon sizing up the situation, he decides a little nap is in order after the tiring ordeal of eating yet another meal.
I always know he will go to sleep if he sighs and smacks his lips and tongue a few times. In less than a minute the eyes will drift closed and some sort of active, freshly energized dream will take over his mind and body.