Fear of Sleep

I know its absolutely ridiculous but the idea of being asleep scares the hell out of me because to me, it's just like being dead. I have a huge fear of death so everytime I almost fall asleep, I jolt myself awake because I'm scared. Being unconsious is so scary to me. I didn't sleep at all last night and I'm absolutely exhausted and I don't know what to do. I know that I'm not going to die in my sleep and thats not what I'm scared of. Just the thought of being asleep scares me. Someone please give me some advice.