Are you familiar with the sensation of being absolutely exhausted but unable to sleep?

@rckt148: Yeah, I've got three friends who were in the military. One was a radar technician, who didn't have [i]too[/i] grueling a schedule so he usually wasn't forced to not sleep at all, but another was a sniper and another was a surgeon at a military base. The latter two both would regularly go for days at a time without sleep. Most definitely the norm in large sections of the military. Kind of an alarming thing for a surgeon to be forced to do, considering the implications for their hand-eye coordination, but it was a thing.

Know all about the second wind, eventually the tiredness fades but a while after that the physical fatigue starts to set in where physical actions get increasingly laborious. And the mental fatigue most definitely sets in long before that. It definitely takes its toll on your body.

@UndeadPrivateer: well I pray you can rest ,I know when i want to and I can ,it does suck ,
going to my Doctors Appointments I stay up all night and when I normally would be going to sleep I am there ,and my BP is sky rocketed
being tired and in pain ,so the alarms are going off on the machines and they make me sit and close my eyes and they make me do the breathing exercise LOL,nurse puts my arm up under hers ,and they are
15 Min Mr Goodrich and you are going to the ER
now that i am older ,its taken its toll on me ,
So take a fools advice ,try to rest even if you can't sleep
have a blessed one

@rckt148: Thanks, appreciated.

@MartinTheFirst: If only it were so simple. Just climbed out of bed after attempting sleep. Got two hours the night before, just managed another two and then woke up and couldn't fall back asleep. Such fun.

I mean, at least I've been [i]sleeping[/i], and this isn't one of those times I go multiple days without being able to sleep at all.