Definitely open cell if by open cell that suggests inflatable. I have tried a series of pads. The Thermarest Prolite, ThermaRest Z-Lite, Thermarest Neoair, all of the Big Agnes inflatable pads, all of the Exped pads, and finally I stumbled upon the Neoair Trekker.
The Prolite and Z-lite pads just did not offer enough thickness and support for me.
I did not like the vertical baffles of the Big Agnes pads.
The Exped weighed too much, and again, I did not care for the vertical baffles.
The original NeoAir did not feel durable enough to sustain being slept on over a rough surface as soon as I saw it. Sure enough my assumptions where correct, and while my pad did not have any issues, my girlfriend's developed a slow leak. While we wouldn't find ourselves waking up on the ground while using it, if the leak got any worse, that definitely would have been the case. The original NeoAir were also noisy. Bad if you do not want to wake your partner up when you have to go to the bathroom at night. Furthermore, while I am only 5'7, I still appreciate a wide mat. Unfortunately, if I wanted a 25 inch wide mat, I had to buy a 78 inch pad (X-Large). That extra length that I had no use for cost me in weight and in extra money. It was funny because I didn't even care for the regular sized mats at 70 inches. Besides them only being 20 inches wide, 70 inches was much too large for my needs. But that aside, 20 inch wide mats just do not cut it for me. I need some rolling space and that 5 extra inches save me.
The NeoAir Trekker was heavenly. It was more durable than the original Neoair. It was not made of the same noisy material as the original Neoair. And most importantly, it was offered in a wide small verison. 47X25!!! It I was inventing a pad for my specific needs, I would have invented this pad. In fact, this was the pad I had always wanted, but no company offered such a size. The NeoAir had a 47X20, but again that just was not wide enough for me. Do my feet hand off of it? Yes, but my knees to the top of my head have something to rest on, so I am a happy campers. It is super light too.
They recently came out with something called the NeoAir Xlite, and while it has a higher R-value on it that does the NeoAir Trekker, it does not look durable. I have seen one and I could see my hand threw it. It looks to puncture prone to me. And alas, it is not offered in a small 25 inch wide version. If you want the extra width, you will have to get the extra length to go along with it. That means more weight and more money.
My NeoAir Trekker is $99 and 16ozs. It falls under the $100 threshold before tax and it is in the 1 pound range. Is there lighter pads out there. Yes, but not once that meet my exact specifications and not ones that cost the same or less than my bad. I cannot justify paying more money for something that is lighter, but does not meet my custom preferences. I'd gladly pay twice the amount my pad cost me if it meet my custom preferences and weighed half as much. But I think this much is obvious by now
