I've had one. After my brothers wedding. I almost slept 24 hrs after that and was sure i was going to die.
Man, I wish I could sleep. In the last 48 hours I've had about 5 hours of dozing off and waking up half an hour later while having some extremely annoying dreams. It's all good right now though. Some smart person invented these pills that contain caffeine, aspirin and a weak adrenalin-like substance. They might as well call them hangover pills.
I just watched tonight's Dexter finale, wow... 'surprise motherf'er!' wonder what happens next.