Clonidine is a lifesaver at my house. It’s an old medication with few side effects. They use it as an ADHD med for very young children. But it’s a great medication to help ADHD kids sleep. I’ve had my 15-year-old son on melatonin and OTC sleeping meds, but they don’t work like Clonidine. My son takes it 30 min. before bed and before long, he’s out. It’s worth talking to your son’s doctor about. It really helped him get more sleep, which in turn helped him grow. If only the ADHD meds worked well for him.