I hope it's not bad to nap after a workout! On Sundays I usually wake up early and go for a long run, and when I get home I'm so tired I often nap a little. I don't have any research to back it up, but I think it may even be good to nap after a hard workout. First of all, your muscles get a chance to recover while you sleep. Also, I find that after a long run I want to snack on everything in sight. If I sleep I can't eat ;-) Last but not least, if a nap is what you need in order to get to the gym, then feel good about going to the gym, and think of the nap as well deserved rest afterwards!
Lost a lot of weight, got 2 kids, ready to lose the "baby" fat
I will never be the same again