You pass out from drinking. There may or may not be a hangover when you wake up, but I stand by that statement. Like today, after work I had the intention of just drinking a pint of Coors Light on tap. That was quickly chased by 3 shots of "4 Horsemen". Done. I consumed a crappy gourmet version of carne asada fries, drove my drunkass home, proceeded to pass out on my bed for 2 hours. I didn't wake up until Peter called me (I passed out at 7:30pm with the intention of waking up by 8:30p to pick up Peter and meet up with the Sexy Back Line at TapEx by 8:45-9p) at 9:38pm. Although I was still a lil groggy and a teensy bit intoxicated, it was THE BEST nap I've had in a long time. Which explains why I'm still up at 2:30am when I clearly have work in the morning and I should be asleep.
I don't believe the best power naps happen after you've finished studying from finals or whatever because you're still strung up on Redbull and Adderol, plus you're a little worried about how you did on the final. Okay, you might have the best nap after sex. However, that's only if you actually orgasmed because you might pass out from all that cardio but if you didn't orgasm then you might still feel "frustrated" or angry, depending on how well your partner's efforts were or how much energy was exerted on your part.
The WORSE naps happen when you're on a plane. I'm talking about the one where you're seated in Economy Class and you're wedged next to a fat man who snores with his mouth open and a kid who doesn't know what "shut you're fucking face" means. I've traveled by plane many times so my research on this is pretty thorough. It sucks to be in the middle, but when you need to pee and the person in the aisle seat has fallen asleep and their breath SMELLS.. all you can think is "Can I wait another 4 hours to pee and try to fall asleep on my right shoulder or should I touch him and risk engaging in conversation when I return to my seat?" But the point is, the seats are way too cramped and airplane air is so stale and dry that I end up napping in 15 minute intervals... never a solid awesome nap. Random blog? Yeah, but I felt it was important to justify my drinking behavior by pointing out one of the many benefits to alcohol.