Sleeping time: how necessary is that?

yes i agree if you have 8 hours sleeping you feel very great.but in my case i sleep less thank that since i join mylot coz only during the night have time in mylot or lets say most of it.before mylot i sleep more than 8 hours.

I do not think you are wrong,if five to six hours sleep is all you need to be rested and functional than that is good,I think sleep is important,but the amount of sleep needed,varies person to person because some people need more sleep than others,most of the time I will sleep like twelve hours at a time,and then there are times where I will stay awake for twenty four to forty eight hours straight,which is perfect for me ,so I am happy with my sleeping schedule.

Well everyone is different at this time that might be enough for you but you might find at different stages of your life this might change, I guess it depends on what is happening in your life but yes our bodies need time to refresh...

i know that sleep is good for you and that we need at least 8 hours a night, I don't get more than 4 i'd say, Ihave always had trouble sleeping, once awake I am up, at least for a few hours before I can go back to sleep. I have a good bed, but it is just when I lay down all of the days problems start going through my head and I can't go to sleep. Ihave some medicine to take but you really need at least 8 hours or it make you drag all day.

Well,yes,we are alway told that 8 hours of sleep is the minimum necessary for a person to keep healthy,but i think it is depend on your age and your body diathesis and so on.It is different to everyone. But the import thing to keep healthy that i think are to keep a active mood love your life and to keep a regularity to do your daily life. I am 25 years old,and i often keep 7 hours of sleep,i feel very energetic. Best regards.