well i have no trouble going to sleep, or staying asleep actually. i love sleeping and its a great feeling to be refreshed and ready for the day when i wake up after a good 8-9 hours of sleep.
that being said....i love staying up late and playing games, surfing the net, watching a movie, etc MORE so than i do taking a nap. my wife will come home, lay down, and take a nap without even thinking about it. to me, thats just wasting my day. i may be so freakin tired and if actually layed down i would be asleep within 5 minutes and stay asleep for an hour. but i just feel like "man, if i take a nap, thats an hour of relax time that ive missed out on". i know that sounds crazy. taking a nap = rest/relaxation...but to me....taking a nap = 1 hour less in the evening that i get to do what i want. does that make sense? if i take a nap, or go to bed earlier, then the morning comes faster and i have to go back to work. my down time is crucial for me, and i feel like if i "waste" it on sleep, then im not conciously enjoying my down time.
that being said, i went to bed an hour earlier last night and i feel pretty good and energized today. so its not that i dont feel better after sleeping or that its hard for me to sleep and stay asleep....its just that i like staying up late and the freedom that it gives me. im just weird i guess.