Melatonin is kind of a gray area between pharmaceutical and not, so I’m going to mention it. Feel free to ignore me if it’s still a bridge too far. That said, it sounds like your body may just not be producing enough melatonin. It’s the sleep hormone that you produce naturally. I try to be pretty conservative with it, because taking a hormone supplement too frequently can cause your body to stop producing enough, but if your body already isn’t producing enough, you may not have much to lose.