I was given a Manual of Prayers, a prayerbook from the Pontifical North American College in Rome. It includes a grand collection of prayers from the great depository of our Catholic faith. While I do not have the discipline or the strength of faith needed to reach the full potential of the prayerbook, it has been helpful to me. Below is Prayer Before Sleep written by St. Alphonsus Liguori (1696-1787).
Jesus Christ my God, I adore you and thank you for all the graces you have given me this day. I offer to you my sleep and all the moments of this night, and I ask you to keep me from sin. I put myself within your sacred side and under the mantle of our Lady. Let your holy angels stand about me and keep me in peace. And let your blessing be upon me. Amen.