What are some herbal sleep remedies for toddlers and where to buy them?

Many: Teas made with chamomile, lemon grass, lavender and other herbs can be quite soothing and safe to use. For small children i've used tincture of chamomile which you give with a dropper. There are homeopathic sleep aids made by boiron and hylands that are safe and helpful. All of these are available at a variety of health food stores and on line. And don't forget warm milk; not an old wive's tale.