1: repose, sleep; specifically : a bodily state characterized by minimal functional and metabolic activities
2 a : freedom from activity or labor b : a state of motionlessness or inactivity c : the repose of death
So, why has the world for centuries prescribed Sunday as a day of rest? Of course biblical reference has taught us that the sabbath day should be spent in dedicating ones time to God but if you ask me that is not far from a restful way to spend the sabbath. Nap time.