the further i chase sleep .the more awaken i become

while trying to sleep several years ago i thought of that phrase .and it rings true doesn't it? even though i have chronic fatigue syndrome (cfs) i'll be drop dead tired yet when i lay down i can't fall asleep .i'm sure there's a scientific name for it but i just think its crap .i know i'm not the only person who has this happen to them .i know that with the 6 billion people on this earth being unique is becoming harder .but that's a topic for a different blog .but for now .back to my topic of gripe .why would our body tell us tell us we are tired and our mind not allow us the rest?