Chris on October 24th, 2009

In a previous post, I discussed the development of an efficiency factor for regular sized sleeping pads that takes into account warmth and weight.  The warmth is given by the R-value, a standard measure used in the construction industry for insulation.  I standardized the weight with the surface area, but I only included a chart […]

Continue reading about Sleeping Pad Efficiency and Packed Size

Chris on September 28th, 2009

Sleeping pad manufacturers have been quoting R-values for their pads lately.  This is a major step up from quoting nothing for a warmth spec.  However, until there is a similar system for rating sleeping bags, and then a system for comparing sleep systems, there will still be a lot of trial and error in choosing […]

Continue reading about Sleeping pads – warmth vs weight

Chris on September 18th, 2009

It is no surprise that I enjoy the cold, and so it is no surprise that I’ve spent a lot of time in some cold places.  I’ve learned a lot of things about how to sleep comfortably in the cold.  Here is what I do. I take a good look at the historical temperature and […]

Continue reading about Cold weather sleep system

Chris on August 29th, 2009

I actually enjoy spending time in extreme cold weather.  A lot of people think that makes me strange or crazy, and that is good.  It leaves a lot of places relatively unexplored for me to explore.  But, for others that enjoy the cold places around the world, I want to share some hints and tips […]

Continue reading about Extreme cold weather hints and tricks

Chris on August 14th, 2009

I purchased an Exped Downmat 9 for use on longer trips in severe conditions.  I wanted something that would ensure high quality sleep over trips of duration more than a week.  I only plan on using this when the temperatures at night are expected to be well below 0F and the sleep surfaces may include […]

Continue reading about Exped Downmat 9 – Initial review