M.L.
Oh yes, I had a very difficult time falling asleep as a kid, I would just lie in bed for HOURS trying so hard to fall asleep. And I was a healthy and active kid.
A few things can help, white noise (like a blowing fan), a brain dump... in which if the reason he can't sleep is b/c his mind is racing, he can write his thoughts down and that can help him fall asleep, lavender spray or sachet under his pillow, chamomile tea, and also melatonin. Melatonin is an all natural supplement and can safely be given several times a week. We give it to our boys when they have a problem sleeping, about 30 mins before bedtime. It isn't a sleeping pill, or like drugging them with Nyquil or anything, but it does help calm the mind and body to become more restful. I really think that would help him. You can find it in your vitamin/supplement isle.