I have a Prolite in my garage which I use when I go out with my bivvy, I just roll it up and strap it horizontally across the top of my rucksack, my bivvy, groundsheet, etc, are packed in my rucksack. When I tent camp I take my NeoAir because it rolls up so much smaller I can keep it in my rucksack. My tent is then rolled up and secured on the top of my rucksack. Both are excellent.
I have to be more careful with my Prolite, it's only 1" thick and I have to be precise about how much air is in it for me to be comfortable, too little, and my hip is grounded, too much and it's like sleeping on a slab of concrete!