I've done both the double night laps and single and i have to say the double worked best. Last year when we did singles i didn't get any sleep and i suffered badly for it.
Definately take a helper too, in the mix up last year with the lack of time too, i only ate energy bars pretty much, which not only ruined my digestive system *cough* but left me feeling tired also.
All of this depends on the condidtion though, if its relitively dry, it will be enjoyable (relitively) 😉 but if its wet it can be hell.
Bottom line is just try to finish, thats what we do and we have a great time every year. This year we've got a few mates coming down to camp and watch too, treat it like it is in that its a time to enjoy your riding and spend some time with mates i/you/we don;t spend that much time with.
I like the event alot, just hope the weather holds off 😯