For me it is even though it is a bit expensive. It rolls up very small and very lightweight compared to my other matress and again, for me is also comfortable. I do'nt use it in my Bivi, I use my short Prolite for this. I've used the NeoAir for well over two years and no leaks at all. It can be a bit noisy as you turn over but I've more or less solved this, I use a Thermarest fitted sheet. I use the inflator stuffsack to blow it up, takes about 4-5 puffs to do it. The bag is useful as well, can be used as a pillow, I stuff my clothing in it and then place my Sea to Summit blow up pillow on top. I hate getting a stiff neck in the night.