insomnia
"My son's doctor gave him this medicine. He has autism and it's suppose to help him sleep. He has been going to sleep at 12 or 1 and waking up at 4 and 5 in the morning. Not sleeping all day. May take a nap for 1 to 2 hours. Then back running like a track star. I wouldn't be surprised if I came home from work one day and he is running up and down the walls."