I am being told to go to PT by the command on only 4-5 hours of sleep. As a junior enlisted, how do I solve this problem?

The military is not an easy life know matter what MOS/job you have. But it seems one thing is being overlooked. The training, the PT, the work we do in peace time, the hard long hours put in at times are preparing soldiers for combat. Plush living conditions, adequate if not just minimal sleep, MREs, lack of showers for days on end and communications with home are most times very much lacking in combat or deployed areas. I can tell stories after stories of my deployments and combat tours, which seemed to suck at the time, but are fond memories to me and my veteran friends now. I can also tell stories of the same conditions during peacetime on post. It is all part of the experience of being in the military and a soldier. If you look back to those who served before us and the conditions they endured during Valley Forge, the Old West and Indian wars, WWI and WWII, Korea, Vietnam, Iraq, Afghanistan, those soldiers....those soldiers knew some hardship and definitely would call you out and give you grief over having to do PT and lose an hours sleep somewhere in your day. Accidents happen for a multitude of reasons including fatigue, but they are rare. Mental and physical disciple is needed in the military, to complain about something so minimal, while on post, in peacetime...well seems a little unsoldierly to me.

McDonalds is hiring.

Suck it up buttercup. You’re in the Army.

I guess its different now from when I served. In the Marines we were expected to do what we were told. PT on a few hours rest? Not sure what the problem is.

I can only tell you that on submarines we ran on 18 hour days- three six hour shifts, 7 days/week for the entire patrol. And that came immediately after the 30 day refit/crew turnover during which you worked whatever you had to work to get the boat ready to go back to sea- often 18-24hr days or more.
During patrol you did a 6 hr watch every day. When not on watch you had equipment to maintain, constant battlestations/casualty drills (the Navy, at least the sub service, loves their drills!), never ending qualifications to pursue (and until you at least earn "Qualified in Submarines", i.e. Dolphins, getting qualified is an all-consuming activity) regular cleaning and the much beloved 'field day' marathon cleaning once per week.
What you did with your free time was up to you though...

Yeah, it sucks. You're tired. You get worn out. It's not easy. If it was easy there'd be children doing it.
But in the end you just do it, and you end up proud that you did something difficult. You earned something. And someday you'll be laughing at you your civvy friends when they piss and moan that the the boss made them stay 20 minutes late or they had to work a half day on a Saturday.

you show up for PT 5 hours of sleep is enough I could say a lot more but I will leave it at that

Advdersity conditions one for adversity. Does this not apply anymore? How many combat vets got 4 hours of sleep or less for months or years on end?

Why not ake advantage of the adversity and see it as a way to harden your body, mind and character?

You only work 8 hours a day. I would stop whining

You are winning.
If you work the grave yard shift you get off go the rack and then get up at 1600 for pt. Otherwise you make the 5:30 pt. You have no choice. You are in the army. During war time you might get 5 hours if your lucky. So suck it up butter cup and get with the program

Learn to deal with it. Do you think during an attack, the enemy will wait until you have 8 hours sleep? I was infantry in Vietnam, we never slept more than a few hours at a time.