Does anyone have a recipe for a health herbal type of hot cocoa?

Evening. I make a drink for myself and my husband each night that's a relaxing-mushroom-medicinal-hot-cocoa. And my kids would like a little something too, especially now that the weather is getting colder and the herbal sleepy tea is not tempting all of them.

But I don't want to just give them a bunch of sugar before bed. I know I've seen some herbal hot cocoa recipes out there however, all my herbal/cookbooks are still packed because we're still working on renovations to the house. And those are the only places I can think of where I may have seen a recipe.

Do any of you have any recipes? Or know where I might find one, like on a site, blog, etc.? I would love a recipe that was the tastiness of hot cocoa but was medicinal as well possibly helping to relax, help boost immunity, etc.