I’m an advocate of ‘stay with the vehicle’ for those times when you wind up, for whatever reason, unable to proceed any further…could be snow, vehicle malfunction, bad gas, whatever…if you’re in the middle of nowhere and your vehicle cannot proceed the thing to do is stay with the vehicle. Don’t believe me? Search the blog using the tag ‘strandings’ and read what comes up.
Staying with the vehicle is easier if you have the necessary gear, and I like to think I keep the vehicle stocked with the necessary gear. So, when its 0-degrees out and the wind is howling, is that surplus military sleeping bag really going to keep you from losing toes, ears, fingers , and nose to frostbite? Assuming you survive?
Let’s find out.
I keep a military sleep system in the vehicle year-round. Its an okay system and the price is right – free at most military standdowns. I have a half dozen in storage. Are they actually warm down to 0 degrees? Well, last night was at zero so I decided to test it out. I rolled out the GI sleeping mat, laid out the sleep system..inner bag, out bag, bivvy sack…stripped down to socks, shorts and a t-shirt, and climbed in. First off all, that transition of several seconds from ‘fully dressed while standing outside in 0 degree weather’ to ‘partially dressed but huddled in a sleeping bag’ was…intense. Once in the bag it was huddle in a ball until things warmed up. And then….not bad. I basically cinched everything up so my nose and mouth poked through the hood of the bag and left it at that. I’m not going to say it was toasty, but it was warm enough I could fall asleep and it was, without a doubt, warm enough that I wouldnt lose body parts to frostbite.
While I was cocooned in the bag, I used my phone to entertain myself and see what the official weather was.. -1 with winds around 12-15mph. And there were gusts that I could feel rippling across the bivvy sack, which did a nice job of being windproof.
I suspected that the military sleep system would be adequate and it was. This was laying on the ground in an unprotected and open area. Used in a vehicle, which would offer some material benefits in terms of protection from the weather, the MSS should be pretty much ideal. Better bags out there? Absolutely..but the MSS come out cheap enough that you can have a couple in a vehicle and not break the bank.
Drawbacks? A tad snug. Bulky as hell, but since it’s just sitting in the truckbox that isn’t really an issue. but, more importantly, experiments like these give me faith in a piece of gear and thats got quite a value all on its own.
So, if all you keep in your rig is a couple blankets, or, worse, a ‘space blanket’, I invite you to wait for a nice, clear, bitterly cold night and try them out for a few hours. Its the kinds of experiment that costs nothing but can pay off some big dividends…especially next time you get stuck in your vehicle in the dead of winter.