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Field notes — I write these in first person, from how I actually pack. Photos go in when I have them.

I'll add a photo soon.

The sunny icon lied a little

The app said 48 and mostly clear. By the time the fire was down it was 41, and the tent nylon was cold if I touched it. The site had no hookup. That was the point. October is when I find out whether I packed a camp or a patio.

I had already decided I was not going to run anything with a cord. No electric blanket. No heater humming next to the cooler. If I cannot stay warm with what fits in the trunk, I am not ready for this weekend.

I warm myself, not the tent

A heater in a closed tent is the story I do not want. Carbon monoxide does not care that it is only October. I leave that box at home.

What works is boring. A sleeping bag rated colder than the forecast, not the one whose tag promises I will be cozy at that number. A pad under me, because the ground steals heat faster than the air does. A knit hat. Dry socks I changed into at the tent door, even though the ones I walked around in felt fine.

I boil water on the canister stove, fill a tough bottle, check the lid twice, and park it by my feet inside the bag. That is the heating system. It is quiet. It does not need an outlet. In the morning the bottle is lukewarm and I am not.

Dinner is part of the sleep system

I eat something hot before I get in the bag. Soup, or just water for tea. Going to bed hungry and cold is how I wake up at 2 a.m. sure the bag is broken.

The fire is for sitting. I do not count on it for heat I have to have. By October the wood can be damp even when the afternoon looked fine, and I am not interested in a long argument with wet oak after dark.

The clothes I actually sleep in

A dry base layer I did not wear while I cooked. Not jeans. Not the sweatshirt that smells like smoke and is a little damp at the cuffs. The sleep clothes stay in a stuff sack so they do not live on the tent floor.

If I am still cold, I put the puffy on inside the bag. On top of the bag it just compresses into a thin blanket and does less. And I zip the bag. Leaving it half open because I 'sleep hot at home' is how I sleep cold out here.

What I will throw in next time

A closed-cell foam pad, even though I already have an inflatable one. Two layers, and the foam still works if the inflatable gives up at 11 p.m. I will also stop believing the first number in the forecast. I pack for about ten degrees colder than the advertised low. The extra bag bulk has not bothered me in October. Waking up cold has.

What I actually link when I mention gear

Kelty Cosmic 20 Down Sleeping Bag

View on Amazon

MSR PocketRocket 2 Ultralight Stove

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Light My Fire Swedish FireSteel 2.0 Scout

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Black Diamond Spot 400-R Headlamp

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Quick answers

Do I need a hookup or a generator for fall camping?

Not for a night in the low 40s. I need a bag rated colder than the forecast, a pad under me, dry clothes, and a way to boil water. Electricity is for a fan or a movie, not for staying alive until morning.

Is a tent heater fine if I crack a window?

I still do not use one. A cracked window is not a plan. I insulate the person and leave the heater at home.