I picked up a small NeoAir yesterday and spent most of last night sleeping on it on my living room floor. I spent the last 2 hours on my old POE Insulmat Max Thermo (now the Ether Thermo) for comparison's sake.
I did find out that after I let out enough air to be comfortable, it's a good idea to check to see what the pad looks like! It looked almost flat at 4:00 this morning, but when I lay back down the thickness felt the same as what I adjusted it to the night before. However, it does appear that there's a leak in my POE pad!
I am a side sleeper, female with quite wide hips and shoulders for my height (5' 3"). I get excruciatingly painful hip joints if they are not properly cushioned, and also have back issues if my spine isn't reasonably level when I'm on my side. With my POE pad I blow it up no more than halfway. My downward hip sinks in until it's just barely off the ground, my downward shoulder is maybe an inch off the ground and my spine is pretty level. I need to achieve this with the NeoAir if it is going to work.
Noise is a non-issue; the NeoAir sounds a little more crinkly than my POE pad but the decibel level is about the same when I move around. My sleeping bag under me effectively muffles the noise, even though I had the zipper part-way open all night.
The effective width of the NeoAir when inflated is 19". Interestingly, the effective width of my inflated POE pad is more like 18", because the outer part of each side tube of course slopes steeply outward. Because I'm used to being cradled by the vertical tubes of the POE, I did have a little of the feeling of being threatened with rolling off the NeoAir, but I very quickly adjusted. It soon became a non-issue.
The lack of a stuff sack is also a non-issue because my Six Moon Designs Comet pack has an inside pad pocket. That's where I have carried my POE pad.
The stickiness of the NeoAir's top does make turning over a bit more difficult. I'm used to taking the sleeping bag with me when I turn over, and this isn't as easy with the NeoAir.
The NeoAir, because of its smaller tubes, doesn't feel or appear as thick when inflated as does my POE pad. I had some difficulty finding a comfort level between inflated too hard and my hip bone resting on the floor. However, it isn't as bad as what I experienced with the Big Agnes Clearview last summer--I couldn't make the Clearview work for me at all. I could have slept the rest of the night on the NeoAir--I moved only so I could compare the two pads.
The POE pad definitely felt more comfortable when I first moved to it. However, my hip bone was on the floor when my alarm went off two hours later. I'll have to pump it up full and do some bathtub testing.
The jury is still out on whether the NeoAir is comfortable enough for me. I will spend a few more nights on the floor (early next week) and a few nights in the backyard.