I liked the older neo air regulars, but now the xtherm looks like the way to go. the xlite is very fragile, whereas the original was super durable for something that light. plus the noise sucks from the xlite. if you are an accomplished hiker, heck, if you hike at all, you will have decent lung capacity. this means you will be very able to blow this thing up. don't do it too fast, but come on is it really so bad? well, ok fine if you say so, OR if you are a nut about keeping condensation and your breath out of the inside of your neo air, or use it for winter camping with its good R value, go for this:
that's right, it weighs 2.3 oz w/batteries... even with this you just saved ounces from your sleep pad while also getting up to a luxurious 2.5 inches of padding.