At the time of posting this, my vetting has not yet been pushed through so I apologize if what I say needs to be put on hold until that comes through but:
As a former Marine Grunt who has woken up and had to crack the ice off of himself more than a few times, and as one who spent the better part of a month sleeping on the ground in Korea in December, I have a few suggestions.
I am surprised no one has said this before but: Do not sleep with your boots on. Sure, you may think - I'll keep my feet warm as I sleep. You would be making a crucial error. I learned the hard way. As a young Lance Corporal in my umpteenth day in the field, I decided it was too cold to take my boots off as I laid down, and that somehow that was a good idea. I woke up and tried to stand, but could not. I was walking around like a baby deer with cement shoes on for almost two hours, and fell over more than once because my feet were near frostbitten. The pain I felt when I regained feeling in my legs was worse than any shiver...Luckily my platoon was very understanding, and allowed me to rest and regain my strength... and by that I mean, no one gave a shit and I had to pack up and hump out as fast as anyone. Sleep with socks on at most, and change them out in the morning. I used to stick my morning pair of socks in my crotch as I slept and first thing in the morning I would put on a nice, fresh pair of field-crotch socks. Don't use socks you have worn earlier in the field op this way, it's a great way of getting dick-itch from the nearly 100 percent chance that you have athletes foot from the showers of OCS. But I digress...
Change your socks a lot. This has been talked about. I am also a fan of the pantyhose/neoprene/lady's stockings under socks, but knowing your feet and what they respond to best is better than the promises of any high-speed sock label.
Humping with layers is a good way to get a thermometer in your ass in front of your peers.
Don't wear your fleece cap underneath your kevlar if you're going to be physically active. It probably won't drop you like a layer of polypro on a 20k would, but it still sucks. It also, in my opinion, looks and feels dumb.
As for staying warm... I have the best piece of advice for you, but it is hard to do before you have to do it:
Lean into the suck. OCS will suck, and though it will likely look like a cake walk to you later in your career, it will still suck at the time. Fighting that suck is what makes you pay attention to how much something sucks - makes you shiver extra hard, and is a good path to what makes you lose heart. You always hear that phrase "embrace the suck" for a reason. When you start to feel miserable - and you will feel miserable - don't fight it. That does not mean layer yourself in a false sense of motivation, which is duct tape on gun shot wound. What I mean is: Just stop trying to find little ways of being happy/comfortable/warm. Understand on an intrinsic level that this is going to suck and let go. The ability to enjoy misery will be your biggest friend in many cases, depending on the career path you follow. Bitch, moan, complain all you want but the moment you start looking for any and every way to stop the suck, you lose focus on what you are doing. Few if not no one can do that 24 hours a day forever, but it is a mentality that you can foster.
One more thing: Take comfort in your fellow...cadets? I know that OCS is more...social than regular bootcamp, so invest in being a good team member and making the most of bullshitting with the people around you. My best friend from the Corps went to OCS after our enlistment was over, and he said the first thing he noticed was how individual everyone there was. Having a laugh or a moment with your buddies can strip the cold away.
Bonus suggestion for when you are not in the schoolhouse: There is one piece of unnecessary gear that I would never leave without in cold weather training, and that was a JetBoil. Despite what I said earlier about leaning into the suck, there is something so unbelievably amazing about a hot cup of coffee when you are frozen down to your soul. Worth the weight of a small tank, the container, and a few packs of instant coffee / The dogshit that comes in MREs.
Hope you enjoyed my novel. Good luck to you, and do not buy anything from the vendor's outside the PX, no matter how cool the family-crest shield would be!
