Been there, done that. At some point, the micronaps kick in. Been caught sleeping standing up three times, too.
I really try to avoid that kind of sleep deprivation any more.
As long as you can keep in mind that the perceptional differences are the result of the sleep deprivation and compensate you are OK, but that gets harder as the run goes on.
No wonder the meth heads are whacked, they are fighting the drug and the sleep deprivation.
She just looks completely hailed out.
You start to see things that aren't there. Especially your night vision.
You'll se something ahead that you'd swear is a group of people and it's only bushes or shadows.