Life without deep sleep is good for world?

Sleep? Does the body need sleep or rest: Does the mind not give you rest on nights, what could be worse, because of your habits in today's lifestyle, deepest sleep is form of rest we know so why we talk on deepest sleep? is it right,The body needs rest if you keep body relaxed properly throughout the day,exercise, play,junk, do whatever activity you will.The problem is that we have made life a lot more complicated; we see everything as a hard-under stress. you are in the park, you also find yourself with stress. such exercising is war for us What is the meaning of such exercise which fights a war on itself. whether yo do Exercise, do jogging, and do walking whatever you do, you should do it with easily and happily .Do not fight with life make it easy that will give deep sleep that may be for 4 hours. for more comment thanks