It is expensive, but I find that the hmblt sleep vaporizer pen is the best formula I have tried for falling asleep. I really think they hit it out of the park on their pens in general. You can find them here: https://www.hmbldt.com/formulas/
Sensi chew sells an insomnia tootsie roll type of edible, with a few mg of melatonin as well: https://sensiproducts.com/product/sensi-chew-insomnia-plus-pure-cbd-melatonin/
ryan