The Cold Night Sleep Kit
The StockTent method for a warm night outside: one number for the night, the bag's Comfort rating and the pad both read against it, the pads you own stacked before you buy, and a camp your bag covers
StockTent's free Sleeping Bag Temperature Guide and Sleeping Pad R-Value Guide each answer one question honestly, and they never meet. The bag guide does not know your pad, the pad guide does not know your bag, and neither knows that your forecast is for a town far below your tent. A bag's rating was measured with insulation underneath it, so the pad is half of the rating. The kit turns your forecast into one number for the night and reads the bag and the pad against it. On the worked example, a +4 °C forecast for a town at 200 m is -1.2 °C at a camp 800 m higher and -4.2 °C once the wind is counted. A bag labeled Comfort -2 °C, Limit -8 °C looks covered by its Limit and is 2.2 °C short by its Comfort rating. The R3 pad is short too, and stacked on the R2 foam pad the sleeper already owns it makes R5, good to about -11 °C. The bag's ceiling on that forecast is 660 m exposed and 1,120 m sheltered, so a sheltered pitch at 1,000 m covers the night with no new bag. Every figure is computed by our calculators; the forecast, elevations and gear are examples, and the 6.5 °C per 1,000 m and the margins are rules of thumb. It plans on the Comfort rating only, never the Limit or Extreme, and carries the carbon monoxide, forecast, trip plan and hypothermia lines. Included: 23 printable pages with seven steps, a night card, a gear inventory, a trip plan card, reference tables in °C and °F and a quickstart, plus a personalised sheet worked from the numbers you enter in our calculators.
What’s inside
- The Camp Forecast Rule: the low at your camp from a forecast for a place lower down, with no credit for camping lower
- The Margin Rule: one number for the night, with margins for cold sleepers and windy, damp or exposed camps
- The Comfort Rule: a bag covers the night only by its Comfort rating, never its Limit or Extreme
- The One Number Rule: the pad's R-value read against the same number as the bag
- The Stack Rule: every combination of the pads you own, before you buy one
- The Ceiling Rule: the highest camp your bag covers on the forecast, sheltered and exposed
- The Go/No-Go Rule: tent size with gear inside, vents, no fuel burning inside, the forecast checked and someone told
- Printable working pages: a night card, a gear inventory and a trip plan card
- Reference tables in °C and °F: degrees colder by climb, pad R-values and bag bands, plus a quickstart
- A personalised sheet worked from the numbers you enter in our calculators
Run one of the free calculators first and buy from that page, and this sheet is computed from your own figures. Buy from here and the pack still arrives complete — the sheet simply has no numbers of yours to work from yet.
14-day refund, no questions asked. If the pack is not what you needed, email support@graburl.com and we refund you in full — you do not have to justify it or delete the file. Full policy.
$19.00 including any taxes · PDF, 23 pages · instant download, link valid 7 days and 5 downloads.
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