Insulated sleeping pad on Everest
Also called: Insulated inflatable sleeping pad, Self-inflating mattress, Sleeping kit (bag and mat, for the overnight), Sleeping pad
What it is for
Insulates you from the ground. On snow or frozen ground the cold comes from below, and a warm sleeping bag on a thin mat still makes a cold night.
What Everest asks for
Standard
Full-length inflatable, high R-value; base camp usually has a mattress (23 operators say so), sent ahead to a higher camp
What to look for
- R-value (ASTM F3340)
- How well a mat stops the ground taking your heat: higher is warmer. Only figures measured to ASTM F3340 (since 2020) can be compared between brands.
Kinds
- Inflatable Sleeping Pads
- Self-Inflating Sleeping Pads
Other mountains
- Standard on: Everest, Aconcagua, Denali, Kilimanjaro, Elbrus, Vinson, Kosciuszko, Carstensz Pyramid
