Can't Sleep - Sign of Stress

I am suffering from my pre-exams-stress-can't-sleep-syndrome. Geez...
I got less than 6 hours to rest and I don't want to drink beer to get myself to sleep... I'm tired yet I can't sleep. Argh...
Have been lying on my bed for the last 1 hour and can't put myself to rest. My mind is all blank now, blank like a sheet.

Just got to tell myself, it all will be over in 12 hours time. Endure. All the way. Nitez.