Psalm 92 gives direction for celebrating the Sabbath. Because God is not only our maker but also our designer, we can trust that if He gives us perspective on how to rest, it must be precisely what our created frames need.
We are told to declare his steadfast love in the morning, to meditate on the fact that he has unfailing, steadfast love for us before we even begin our day. Additionally, we declare his faithfulness at night. Recounting the ways God has been faithful to us will be the best expenditure of our mental energy. Instead of mindlessly looking at other things, or anxiously worrying about tomorrow, reflecting on how God has never failed us will equip us for what is to come.