Sleeping bag on Denali
Also called: Expedition sleeping bag, Sleeping kit (bag and mat, for the overnight)
What it is for
Keeps you warm through the night in camp. On the coldest mountains it is the single most important thing you pack: you cannot climb well after a night spent shivering.
What Denali asks for
Standard
One bag for the whole climb: −30 to −20 °C comfort · −30 °C and colder for a May start or if you sleep cold, you carry it
What to look for
- Comfort rating (ISO 23537)
- The lowest temperature at which a typical adult sleeps comfortably, measured to ISO 23537. The limit and extreme figures on the same label are colder, and they are survival numbers, not sleeping ones.The gear lists ask for one of five comfort bands:
- 0 to 10 °C comfort (32 to 50 °F)
- −10 to 0 °C comfort (14 to 32 °F)
- −20 to −10 °C comfort (−4 to 14 °F)
- −30 to −20 °C comfort (−22 to −4 °F)
- −30 °C and colder, comfort (−22 °F and colder)
Kinds
- Expedition Down Sleeping Bags
- Mountaineering Sleeping Bags
- Trekking Sleeping Bags
- Synthetic Sleeping Bags
Other mountains
- Standard on: Everest, Aconcagua, Denali, Kilimanjaro, Elbrus, Vinson, Kosciuszko, Carstensz Pyramid
