Being an INTJ, I am a fantastic multitasker, I get all of those thoughts through my system well before bedtime, upon bedtime, I'm asleep before my head hit the pillow... Unless of course I need to finish just ONE more chapter of the book I'm reading... Oh look! 4AM! Ok, I'll put it down... 2 hrs of sleep is enough... 8hrs later... "*cough cough* I'm not well, I can't make it in"