Sleep is a very significant aspect of everybody’s life. We spend about 1/3 of our day sleeping! But why do we sleep so much? And is sleep so important? If not, why do we sleep so much? Sleeping is important. It’s said everywhere: in ads, articles, etc. But why do we sleep about 1/3 of the day? I mean, isn’t that redundant? If you’re an adult, yes. How much you sleep varies depending on how you are biologically hardwired and it also depends on your body’s current needs. So how much should we sleep? “For newborn babies, the ‘may be appropriate’ range is from 11 to 18 hours. For seniors over 65, that range is from five to nine hours.”