Can I take a low dose of melatonin several hours after clonidine?

Google is telling me absolutely not, but I rely on melatonin to sleep at night. The clonidine is not making me fall asleep. I took a half of .1mg tab a couple hours ago and I feel like if I'm still awake in several hours, it should be safe to take a low dose of melatonin. I really need the sleep, if I don't sleep my already ramped up nervous system is going to get worse.

Do any of you take both melatonin and clonidine?