Is it just me, or does an overtired toddler act remarkably like a freshman on spring break? Here are the kinds of tired. For "sleepyhead" substitute "drunk" and you'll see what I mean:
--The expansive sleepyhead.
Every gesture is exaggerated. Every facial expression is a mug.
--The mean sleepyhead.
--The silly sleepyhead.
Repeated words, really bad jokes, and the tone of voice tuned to remind one of nails on a chalkboard.
--The clumsy sleepyhead.
Trips, falls off of chairs, definitely fails a sobriety test.
--The punchy sleepyhead.
This could also mimic a cocaine habit. Because that is what this toddler is like. A crackhead. Zooming from one activity to another, running, jumping, in defiance of all laws of the conservation of energy. Or: perhaps the energy is drawn from the parent in some sort of quantum equation.