Sleeping bag

Sleeping bag must be chosen appropriately to the environment where it will be used. Absolutely versatile sleeping bag that will suit us at all times does not exist. For example down sleeping bag is more suitable to very low temperatures, i.e. dry environment. On the other hand, for the dumper and less cold environment is sufficient sleeping bag with synthetic fibre. Feathers in sleeping bags come mainly from goose (or other birds, such as Eider duck), it is a mixture of down and small feathers. Down has the main isolation function; feathers provide flexibility and prevent flattening of down feathers. The ratio is given as a percentage (e.g. 80:20). There are various types of synthetic fibres, but all of them have the ability to retain thermal insulation even in moderately wet weather. Furthermore, the synthetic fibres are also suitable for people with allergies, are mildew resistant and more resistant to flattening. On the other hand are sleeping bags with synthetic fibres bulkier and take more space in the backpack after packing. The maintenance of sleeping bags with synthetic fibres is also easier. So the final summary is: very simply can be said that for the summer events in the rocks is sufficient sleeping bag with synthetic fibres, and for the events in the mountains and for the winter events is better down sleeping bag.

1 – hood with drawcord; 2 – shoulder collar ; 3 – chamber baffle; 4 – fill of the chamber – 5 – lower zipper slider (feet ventilation); 6 – opening/closing of the sleeping bag; 7 – upper zipper slider; 8 – collar drawcord

1 – hood with drawcord; 2 – shoulder collar ; 3 – chamber baffle; 4 – fill of the chamber – 5 – lower zipper slider (feet ventilation); 6 – opening/closing of the sleeping bag; 7 – upper zipper slider; 8 – collar drawcord

When buying the sleeping bag we have to think about in what temperatures we will sleep in it. The manufacturer must put a label on the sleeping bag indicating the data regarding thermal comfort.

T-max – upper extreme temperature, skin temperature 35 °C, at higher outdoor temperatures is the sleeping bag uncomfortably hot

T-comf – upper limit of thermal comfort, skin temperature 32.8 °C, at a lower outside temperatures arrives the feeling of coldness (probably the most essential information, which will tell us at what outside temperature we’ll have a “fairly good” sleep.)

T-lim – lower limit of thermal comfort, skin temperature 32.9 °C, at lower outside temperatures arrives the feeling of coldness.

T-ext – lower extreme temperature – the same clothing as used outdoors, skin temperature 29 °C, at a lower outside temperature arrives the danger of hypothermia.

More in e-book.

Title Part 2Mountaineering Methodology – Part 2 – Gear and Accessories

ISBN 978-80-87715-08-6

MMPublishing, 2013

Available for download from Apple iTunes (in the Books section).

For example U.S. store – link

Another countries – look on the page Download

See layout.

Another possibility is Google Play. This version is a simplified (as PDF).

Title Part 2 GPMountaineering Methodology – Part 2 – Gear and Accessories

ISBN 978-80-87715-13-0

MMPublishing, 2014

Available for download from Google Play.