Should one who has recited the sleeping supplication and breathed upon his body, then had to get up from his bed, repeat the supplication if he returns to his bed again?

If a Muslim gets up from his bed after having laid down, recited the dhikr of sleep, and blown al-Mu'awwidhat over his body, then wishes to return to his bed, it is prescribed for him to repeat the dhikr of sleep and the blowing, due to the hadith narrated by Abu Hurairah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "If anyone of you gets up from his bed and then returns to it, he should dust it off three times with the edge of his lower garment, for he does not know what he might have left behind on it. And when he lies down, he should say: 'In Your name, my Lord, I have laid my side, and in Your name I will raise it. If You take my soul, then have mercy on it, and if You release it, then protect it with what You protect Your righteous servants with.'"