staying awake

[CAROL HEARD <carolheard@mcsi.net>]

This may be a simple thing for all of you really
energetic, hyper riders out there, but I've been wondering......On the
mountain type 100 mile endurance rides (is that what is called the "technical"
ride?) How do you stay awake?
Do you just run on adrenaline? Sleep on the horse
& hope that it doesn't spook out from under you? Grab a quick nap?
Realize that the front-runners probably don't have that problem, but what
about the rest? Any ideas?
carol
Roseburg, Or.