E.C.
Hi M.,
I gave my niece some Calms Forte and she reported no results in calming nor inducing sleep in her son. However, I keep Insomnia by Hylands in stock for both myself and my daughter because it has worked for everyone I've given it to, adults and children alike.
My daughter is nearly 4.
http://www.hylands.com/products/insomnia.php
I'm editing my post to include my recommendation that you also look into Hylands Upset Stomach remedy as well. This is the greatest stuff, for tummy issues and digestive upsets when you don't know which end should be up. As you may know, it's very difficult to diagnose and fix tummy issues. But this will stop it in its tracks. I have used it myself preventatively for acid reflux and also for what felt like food poisoning.
Good luck.