RE: Klymit Inertia X-Frame

The Inertia was not the best for sleeping on. I toss and turn most of the night, so, the voids caused me to lose track of exactly where it was under me (in my half-asleep toss.) I had my foot and lower leg through it one night. Where is the edge?

They are not really designed to be used without some sort of full cover. Again, in summer weather they work OK, but expect them to leak in cold weather. They do not quite lay out flat against the ground, this causes some curling and loss of seal with the ground. Using a bag, I prefer the mat inside, it pretty much solves the tossing & problems and stops air leakage. With a quilt, I do not have this option. Any broken seal with the ground, will cause some colder air leakage.

I do not usually carry a ground cloth so I worry that on wet ground my bag will become damp/wet in spots. This means that using the Inertia (at around 9oz) I have to add a couple extra ounces for the ground cloth. With a standard matt or NeoAir (weightier but not needing a ground cloth,)the Inertia runs about the same, overall, for my sleep system.

The loft pockets work well. These allow a bag, under you, to expand into them. They are warmer than you would initially expect, and, is likely the reason they do not give an R value.  Depending on how you use it, they are as good as a NeoAir. With a quilt, this doesn’t happen. Not really designed for a quilt…

They inflate quite easily (about 5 - 6 breaths vs about 20 for a NeoAir) but, they need higher pressures. Soo, harder blowing or more volume becomes the trade off.  Or you could bring the little pump. The trade off becomes a bit more weight and fiddling, or, harder work...the wife cannot do it, I have to do it for her…it is sort of border line.

For volume considerations, it rolls up very small, much smaller than a NeoAir. This was the driving factor for me to get one, regardless of any weight savings (which is basically none.) It gets very high marks from me in this regard. Small volume items are ALWAYS a consideration with a small pack (I use a ’12 Gossamer Gear Murmur.)

Comfort is “iffy.” On harder surfaces, it is not real good. Lean-to’s, hard ground, or rock surfaces it performed quite poorly. For forested grounds, where I could kick some duff under it, it was great.  So your mileage will vary with your terrain.  This meant for me, using whatever shelter I could find, it was rather uncomfortable, overall. Unless you know where you will be staying, I still prefer the NeoAir, regardless of other problems with it.

My thoughts only . . .
                jdm
James D. Marco
302 Mary Lane
Ithaca, NY  14850
607-273-9132 (land), 607-220-9969(cell)