I've got the POE Thermo and for ground sleeping find it pretty comfortable. I'd still rather be in a hammock but when I can't it sure beats a Thermarest. Take a look at Kooka Bay, a new cottage industry maker who is getting great reviews over on Backpackinglight. His pads ar super light and you can get them made to size and filled with down for warmth.
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If I wouldn't eat it at home, why would I want to eat it on the trail?