Can't sleep?

So it is midnight and you can't sleep and so you start blogging about it, what is a healthy sleep period? I mean what are healthy sleep hours for a person in their 20's or maybe it differs per person cause I can't sleep and it is past midnight.

We all are told from childhood that a person needs to sleep 8 hour per day and that is a must so your body can reboot and repair what needs repairing. Well, I have been in bed for the past ±hour and I am not sleepy at all, and this happens everyday. It could have something do with the fact that I wake-up at 10/11 am mostly and that is why I always fall asleep at 2 am. Oh yes! I drink a lot of tea and I'm not very active but I would like to be.

So the question is again, is that ok! Or is there a problem?