Sahih Adab al-Mufrad

927/1217 (Sahih) From Abu Huraira who said: The Prophet, peace and blessings be upon him, said: "When one of you goes to his bed, let him take the inside of his garment and dust off his bed with it, and mention the name of Allah, for he does not know what may have come onto his bed after him. When he wants to lie down, let him lie on his right side and say: 'Glory be to You, my Lord, with You (in another narration: in Your name / 1210) I lay down my side and with You I raise it. If You take my soul, forgive it, and if You send it back, protect it as You protect Your righteous servants.'"