Amazon has the 60-Count Natrol Sleep + Calm Drug-Free Kid's Gummies for $9.99 - 5% off with Subscribe & Save (can cancel anytime) - 20% off coupon (check “Save an extra” box, eligible on first S&S order for this product) = $7.49 with free shipping on $25+ or with Prime. Sells for $13+ elsewhere.

These supplements have Melatonin, L-Theanine, Chamomile, Lavender, and Lemon Balm.