Insomnia, and

Insomnia, One of the symptoms that stretches across the entire spectrum of Autism Disorders.
It is amazing to most people how little I actually sleep. I can function at full copacity for an entire day with 3-4 hours of sleep with absolutely no fatigue. I just don't need sleep.
I don't know if it's a subconcious decision because it's so quiet at night, or if it's just the way I'm wired, but I usually force myself asleep around 5 or 6 in the A.M. feeling wide awake as I do.
I have heard that this is a common event with people with ASD's, I guess it gets somewhat taxing on the parents of younger children.
Personally, my parents used to try to get me to sleep, but that was so long ago, I don't even remember it. They also tried to stay awake with me, but soon found that impossible, and left me to my late night devices. I spent my nights somewhat productively, reading books far beyond my age level, drawing, admittedly playing nintendo, or movies from our meager collection of Disney cassettes. I would play with GI Joes, build forts, anything really, so long as I didn't leave a mess for my mother to have to deal with in the morning.

Now, I had another little quirk, in addition to not needing sleep, I hardly ever needed to eat. And when I did eat, I had such picky tastes it was almost impossible to feed me. Now, many Autistic kids are picky with food in regards to texture, and specific tastes, however, nobody else I've heard of would go upwards of three days without food and not realize it, AND not be sleeping.

Obviousely, my parents were stuck with one scrawny little kid.

Both of these issues still exist. The eating issue, not so much. I usually eat every day now.....usually. But I'm still 5'11" and only 130lbs. despite being physically active, and lifting weights.

Anyway, that's the way it is.