Benidrill.... you know the stuff you give the kids when they are "itchy", which they are tonight!
(yea, joking, kinda....)
I do NOT think anyone should do this, but I do remember in the early 1960's when I we all spent the night at my dad's BF and he and his wife had 3 little girls- all of us under 6 yo that Christmas. His wife was a nurse and we got "special" hot choclate, I think it either had a shot of brandy in it or something medicinal..
, NOT something we would or could do in this current day and age. I have the same problem, kids still up, but MY kids are 17 to 24, and, yep, Santa can't fill stocking till they all go to bed, either... now the oldest could have a night cap....hummmmm