While this unit is certainly not the least bulky or lightest item out there, it has one critical advantage over any open cell inflatable, or straight inflatable out there: It can take a beating and it keeps on working. There is simply nothing out there more reliable as a sleeping pad than a closed cell pad. But, there are rather bulky and typically would have to be strapped to a backpack, maybe with a garbage bag around it, to prevent getting wet in the rain.
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For what it is, this sleeping pad is bulky.
For car camping, I think this product is decent, though if I have the option of car camping, I think a portable cot + heat reflector (e.g. mylar blanket) is better for comfort and warmth. For backpacking, it’s just way too cumbersome. I may decide to cut it as the biggest pains in sleeping in a tent is uneven ground or roots/rocks the jut up around my back and butt. My head will have the pack as a pillow and my legs aren’t as easily affected, so maybe a shortened pad is all I need. But as is, this pad is not gonna cut it.