i have always had sleep troubles... when i was a baby, i would never take a nap, and i could never fall asleep quickly and could never sleep in in the morning... My grandmother had to go wandering with me or rock the thing in which babies lay when they cant walk yet (dont know the english word for that), because motion also makes me fell asleep (ie car, boat on a calm river- however strong motions cant get me asleep). Now it is a bit easier for me to fell asleep, and cant wake up early as before. But if I have too many things to think to or when i am stressed, I cant sleep at all, or only a few hours.