6:18 p.m. on February 25, 2013 (EST)
The hot water bottle trick is a good one to know. Handy when you wake chilled in the middle of the night, have a stove and can’t make a fire. Rather than toss and turn and shiver through those long, dark hours, get up, light the stove, have a hot drink, and heat a quart of water to take back to bed with you.
Shall we expand this thread a bit?
Winter Camping Tip # 2
This is gonna sound gross, but is related to tip # 1 above.
Pee in a plastic bottle and keep in inside the sleeping bag with you… I told ya it was gonna sound gross, didn’t I? Ah, note that females usually do not find this a practical thing to do, but it works well enough for men, and “experience operators” even learn to perform this trick while lying down inside the sleeping bag. I mean, if ya gotta go in the middle of the night that’s fine, but why piss away all that heat? Save it and keep it inside the sleeping bag. A light weight sports drink bottle with a 1.5 inch mouth works well.
Winter Camping Tip # 3
Beware the Zippo type heaters at night!
Once upon a time on an early spring "canoe" trip my wife and I pushed our 4x4 pickup as far as it would go, getting it well stuck in old snow pack, then set out on foot tobogganing our canoe and gear onward to a remote lake. When arriving at the lake late in the day we found it still frozen, so we set up camp on the windswept shores and called it a day.
We had two of the big Zippo hand warmers that ran on lighter fluid that a service buddy of mine had just given me.
In the military we used to hang these by our dog tag chains under our uniforms to try and stay warm while on duty outside at night.
That night we lit both warmers and tossed them under our single sleeping bag to warm it up a bit, then crawled under for the night. A few hours later we both awoke with burns from those @$&**^$# Zippo warmers!
That night we suffered from both the cold and burns! Sometimes I think it is a wonder my wife still likes to go camping with me!
Even inside the pouches they come with they get just hot enough to scorch you if you fall asleep against them, so don't use them in your sleeping bag at night! They seem like a great idea because they can burn all night long, unlike the disposable chemical heaters or the boil-to-reuse type, which do not last particularly long.
Winter Camping Tip # 3
Make sure you have enough insulation under you! I think this is even more important than having enough insulation over you.
I find that despite 40 years’ experience that I am still re-learning this simple and important "tip"!
My wife and I use a double sleep system of one type or the other where we use a single sleeping bag opened up or a quilt to cover, and just the sleeping pads for insulation below. We almost always use different sleeping pads. Last October we went on one last canoe trip of the season before the lakes froze up, and my wife slept on an old ( mid 80s vintage ) regular thermarest pad. Probably 2-1/2 pounds with an insulation value of R5? I slept on an 8 ounce Wal Mart blue foam pad, maybe R3, my favorite summer pad.
Snuggled under our single sleeping bag next to my wife I could really tell the difference in warmth between the two pads! To sleep comfortably that night I spread my down parka under me for the extra insulation.
A few winters back I slept in a tipi I have set up on my land with a nephew. It was January and quite cold. I used a huge old down military bag which is quite warm, and under me I had a layer of cardboard and a layer of pine boughs. I slept warm, until my body heat seeped down and thawed the earth below me. Then the cardboard started soaking up the moisture of the damp earth, and before long I had a damp spot on my sleeping bag where my hip contacted the cardboard and pressed the hardest. I woke cold, had to light the fire, find a dry bit of cardboard to lay on and roll the bag to expose the wet spot to the fire to dry it. Pretty dumb in retrospect. Sure cardboard is a great insulator - If kept dry!
If a fella uses a 36" or 47" inflatable thermarest type pad for three seasons, a cheap way to use the same pad for winter is to get a cheap wal mart or similar full length foam pad, and lay the foam pad down under the inflatable.
This saves the expense of having to purchase an expensive winter pad for the occasional winter trip, and I find the combo warm enough as it is my torso where I notice the lack of insulation,
Yeah, sleeping with just the pad under you sure is a way to learn how good the varieties of pads are! I simply hate the thermarest Ridgerest series of pads, and on a five day trip in July my wife and I got so cold at night we resorted to sleeping with every bit of clothing we had with us on, despite temps which never dropped below 50 degrees. The Ridgerest pads are the coldest we have ever slept on, possibly colder than no pads at all when sleeping on forest duff. I know many folks will probably not agree with this, but I think that is because they use a sleeping bag with insulation under them, and the waffle-like ridgerest pads probably work well enough with them.