Please check the rules for your race is you're going to ride double laps. The 24 hour race here has a rule that the rider with the least amount of laps cannot be more than 2 laps behind the next rider or you get penalized a lap. So if one rider does 2 laps and each of the other three riders ride 5 laps each, you get penalized. Make sense? Just check into your rules.

All good food advise. I'm not a big real food eater for endurance rides myself but to each his own. What I can advise is NOT to take a nap. It's too hard to get your body back into the groove. I've seen too many riders takes naps and they are done. Most don't even go back out. Most importantly - HAVE FUN!!!!