is 5-6 hours of sleep enough?

I need 9 hours sleep, I am very grouchy and grumpy if I don't get 9 hours.

They say you should get 8-10 hours of sleep a night. I would like to know who came up with this idea. What kind of life do they live. I personally get around 5 hours of sleep a night. I function just fine. The question is how do you feel? Do you feel rested? can you go through the whole day with no naps? if so then your fine. If your often tired maybe another hour would do you some good.

yes its enough

No ...8 hrs sleep is gud

well your meant to get 7 hours sleep otherwise your mind wil stil be active in the subconcience what i heard .

It's not enough for me but then again, we are all different. Some people say they can get by easily with only 5-6 hours of sleep per night but then again, they are usually quite fat people. You need your sleep to recover from the day. I need about 10 hours per night, but of course I don't get it.

if u need complete rest sleep for 6-7hrs and not more than that...u shall strain urself only....

different people's bodies react differently. some people can survive with no sleep, or little. some people.. like me, no matter how much I sleep, I still feel very tired.:P

I also only get about 5-6 hours worth of sleep. I also think that it depends on the person. I know that, for the most part, I am good with only a little bit of sleep. But, on the other hand, I know others who think that I am crazy for not sleeping more.

I usually only sleep 7 hours, and I'm OK!