A true sense of rest does not lie in being unconscious but in the consciousness of ever-present Love constituting of itself all there is. “Thus it is with man, who is but the humble servant of the restful Mind…” (S&H 119:32-1). All there is to man is God’s thoughts about God, and every thought is controlled by the Mind that has that thought. The substance of yourself is God’s thoughts and these thoughts cannot depart from the nature of the Mind that has and controls them. This applies to everything in your experience. There is one controlling Principle of all, for “governing Himself, He governs the universe” (Mis. 258:14-15).
Mortal mind claims to offer an upside down view of this fact, but there is no mortal mind. It is the illusion. This is why we always begin with God, with what God, the one I, is knowing about Himself, and never with the problem. Science and Health says, “…have but one Mind, even God; for this Mind forms its own likeness” (S&H 216:32-1). We watch cause, not effect.
I like the two verses Psalm 3:5 and Psalm 4:8 on the subject of rest. Understanding how restful being is leads either to a good night’s sleep or a day that is uninterrupted by lack of sleep.