Making a sleeping bag warmer (backpacking)

[I've seen black diamonds!]

Have they come out with lightweight, reliable electric sleeping bags yet?
Just a matter of time and battery technology.

You should make one:
https://www.walmart.com/ip/Clothes-H...saAohCEALw_wcB

[rideit]

If the entire bag was a solar panel, you could just charge it all day.
Hmm.
Step 3: PROFIT!

EDIT: I’m gonna make the tent a solar panel. Charge all your shit.

[stealurface831]

Have they come out with lightweight, reliable electric sleeping bags yet?
Just a matter of time and battery technology.

Elon has entered the chat.

[rideit]

I’m gonna be RICH!

[Cocximus]

MEC would have bought in to electric sleeping bags and solar battery tents.

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[AK47bp]

I usually throw a few hand warmers in my wife and daughter’s bags. Seems to help.


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[skis_the_trees]

-Good pad. Neoair All-Season, Neoair Xtherm, Nemo Tensor, etc
-A liner can help. I mostly use a thin Coolmax liner to keep my bags clean of body oils, dirt etc, but it does add a touch of warmth depending on the liner.
-Did I say good pad yet? In winter I use a CCF pad in addition to the air pad.
-Hot water nalgene for the feet and torso. It makes a crazy huge difference and they stay hot for a surprisingly long time.
-Down jacket over the top of it all
-Consider bivy sack if you're getting a lot of condensation in the tent
-consider vapor barrier system

[Flyoverland Captive]

15 degree bag, merino top/bottom, thin wool hat, thick pad, puffy draped over the pelvis/thighs; it can get pretty cold and I’m good. There’s no way I can wear socks, though; I will not sleep.

Key for me is minimal clothing. Let the bag do it’s job. Too many layers makes it hard to regulate temp.

[nickbokhoven]

+1 on a good pad. Also, boil water and put it in a 32 ounce nalgene water bottle. Put that inside your bag on your pad 15 minutes before you go to sleep. The bottle will still be warm in the morning, it accelerates coffee making in the morning.


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[lifelinksplit]

BS. I find they rob my heat, unless I'm moving. Not comparing directly, but a good dog is much more preferable.

I had a shephard/wolf mix that came skiing/winter camping with me. He was great for warmth however he learned to very slowly and quietly circle around and slowly move me off the sleeping pad to the point I'd wake up against side of tent to see him very cozily curled up on the sleeping pad.

But yeah most of the suggestions people mention are things I do. Always drooled over WM and other lightweight down options but the piece of mind of synthetic always won me over despite weight penalties.

[Danno]

Just buy this one: https://www.tetongravity.com/forums/...d.php?t=337607

That will make your sleeping bag warmer.

[hutash]

Don't forget to fill a Nalgene with hot water when you get in the bag. Clean, dry socks when you get in the bag. Wear a warm, wool cap when you get in the bag.

[Name Redacted]

First, start by reading books about Shackleton's trip to the south pole and realize that you will probably never actually know what cold is.

X3 on the nalgene of hot H2o, rotate between crotch and armpits, finishing up around the neck or by the feet in the morning. Amazing how long it stays warm.

Don't wear too many non insulating layers in the bag. It prevent the bag from doing its job.

However, do wear a down hoody if you need extra warmth. The hood on a jacket stays over your head way better than the one on the bag in my experience.

Adding a closed cell pad can really help too. A 3/4 z-rest is pretty light and compact. If on snow, then go full length.

[XXX-er]

Using your bag inside a Bivy sack makes a it warmer, if I'm cold I wear all my clothes

[Peruvian]

above

Thanks. I’ve heard both. What’s your reasoning for above?

[stealurface831]

Thanks. I’ve heard both. What’s your reasoning for above?

less compression of the inflatable and greater heat reflectivity depending on the finish of the pad.

[Name Redacted]

less compression of the inflatable and greater heat reflectivity depending on the finish of the pad.

Putting CCF on top on an inflatable is like putting your boxspring on top of your memory foam mattress.

[stealurface831]

Putting CCF on top on an inflatable is like putting your boxspring on top of your memory foam mattress.

maybe comfort wise but not warmth.

[Name Redacted]

maybe comfort wise but not warmth.

Do you have any proof other than anecdotal?

[stealurface831]

Do you have any proof other than anecdotal?

https://backpackinglight.com/forums/...en%20the%20two

https://www.whiteblaze.net/forum/arc.../t-118169.html

[stealurface831]

oh, i forgot, wash your bag with tennis balls and down treatment.
that worked wonders for my old GoLite.

[ill-advised strategy]

Thanks for all the input. Couple things I'll add. I sleep super cold. While I'm awake I run hot but for some reason when I sleep I get really cold. Also I've got a 1 year old 15 degree big agnes bag that has been properly stored with an insulated pad and I slept with a down jacket on, fleece pants, and wool socks. I'll look into down pants and maybe do an egg carton pad too. Looking for something not too expensive, otherwise I'll just get a zero degree bag.

I used to have a cheap fleece sleeping bag I could use as an inner layer on super cold nights. It was pretty light, and made a good summer bag on its own or a blanket when unzipped...and a good pillow when folded up.
Would recommend.