Has your trusty sleeping bag started to get a little too cold for mountain & winter use, or are you just noticing that it's not feeling the same as it did when it was new? It's a frustrating experience that can leave you longing for a good night's sleep.
In this article, we dive into the reasons behind insulation loss in sleeping bags, specifically focusing on down-filled ones. We'll explore the science behind the properties of down, the impact of washing machines, and common causes for reduced insulation.