Wild Walking UK

Klymit Inertia O Zone sleeping pad review.

I purchased the Klymit Inertia O Zone sleeping pad, to use on top of a Thermarest Z-Lite Sol closed cell foam sleeping mat. I used a similar set up on my 1200 mile Lands End to John O Groats walk. Then I used a small Thermarest Neoair XLite on top of a simple closed cell foam mat acting as a ground sheet. It helped protect the air mat from punctures, added to the overall sleep systems insulation value and was quick to set up.

In this initial review, I tried the mat on it’s own. Sleeping on it for two nights, with the lowest temperature of around 12 degs C (55 F).

The attached pillow is really nice to have, no more loosing the pillow in the night. The mat was purchased to use on top of a closed cell foam mat, on long distance hikes. I will be carrying two mats just in case the air mat gets a puncture, so I’ll still have something to sleep on.

On a 5 day walk around the Isle of Wight, I only took the Thermarest NeoAir XLite mat and it got a puncture. It was a very uncomfortable and sleepless night. I also struggled to find the puncture in perfect conditions, when I returned home.

The Klymit Inertia O Zone sleeping pad is made with 75D fabric on the bottom and 30D on top, instead of the 30D all round the Noeair Xlite. So on future long distance walks, with this new set up. Hopefully, I’ve less chance of a puncture, but if I do get one, I’m still going to get a reasonably comfortable nights sleep. Or if I don’t, I’ll be very comfortable for a smallish weight penalty.

I liked the pillow being attached to the mat. It stayed where you want it and it was easy to put things under it when I wanted it a little higher. You can feel the cross in the pillow, but it didn’t seem to be a problem and possibly centralised my head better.

Having holes in the rest of the mat makes it easy and quick to blow up. On long distance hikes and when I’m tiered after a long day. The amount of effort the mat takes to blow up can make a big difference to my mood. As it can sometimes feel like a real chore, blowing it up night after night.

You can blow the mat up as hard as you can, but when you sit on it, you’ll feel like you’re on the ground. It’s only 46mm thick, so I’m not sure if it will keep you particularly warm. The Neoair XLite is 63mm thick. I found that when laying down, your body weight spread across the mat and makes it more solid lifting your body off the ground more. The holes in the mat are noticeable and they feel a little odd.

But saying all that, I slept really well on it and I was extremely surprised how comfortable it was, especially as I sleep on my side.

It’s a great mat, ideal for summer use or as I intend to use it, doubled up with another mat in colder weather.

Sleeping Mat links

Thermarest NeoAir XLite – Small – 207g (7.3oz) – R-Value: 0.56

Thermarest NeoAir XLite – Womens – 338g (11.9oz) – R-Value: 0.69

Klymit Inertia O Zone – Regular – with Pillow – 374g (13oz) – R-Value: not quoted.

Thermarest Z-Lite Sol – Regular – 410g (14.5oz) – R-Value: 0.46

Maybe interesting reading links to my blog

Lands End to John O’Groats and 3 Peaks walk 1200 miles

Cape Wrath Trail – North to South

My 11 Wild Camping Rules

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