Gotcha. With too much I feel drugged rather than sleepy, and groggy the next day.

Here and break in fourths: http://www.amazon.com/Sundown-Naturals-Melatonin-Tablets-tablets/dp/B000GG2I9O

Not sure how easily transmittable the skill is, but I can easily break those into fourths by hand by placing thumb and pointer of each hand on one half and twisting one half slightly away from me and the other half toward me. Helps that those are a bit softer than others I've encountered