CLOSED CELL FOAM MATS ARE THE BEST
I still have my 10mm closed cell foam mattress from 40 years ago. It was the bees-knees when it came out, with all the attributes mentioned in the article (‘The multipurpose mattress’, June 2021), but I think the author undersells the insulating properties of CCF.
I have slept in an ice cave, a snow trench, and permafrost ground without an issue of cold penetration on my CCF. I have a slightly heavier inflatable now for comfort, not warmth and it is 1/8th the volume. Will it be around in 40 years? I doubt it.
I suspect the R-values may be a guide, good for comparing similar mats but they don’t truly reflect real-life outdoor sleeping where a bony hip can compress a comparable…
