I tried it two nights ago, and failed. Last night I decided to try it with my brother, so we could keep each other awake, but right after he went in his room he fell asleep- didn't even make it to 11! I woke him up after my mom went to bed (we were planning to do it in secrecy) and he told me to just leave him alone. I made it untill almost 1AM, but I couldn't take it any longer. I think later he tried to wake me up, telling me I forgot about our project, and I told him HE was the one who forgot, so just get out of my room! (I'm not even sure if that really happened, or if it was a dream.) Tonight, I'll get something with caffine.