I too drank caff with DS1, and he is an emotionally charged person! On the go and needs less sleep than a normal person should, haha! I drank no caff with DS2, and he is chill and sleeps well!
Not sure if there is anything to it, but I don't drink caffeinated beverages since I had DS1.
DS1[emoji125]🏼, DS2[emoji577], & DS3[emoji602] completes our family [emoji170]!