The most significant aspect of the mattress is who shares it with you. Personal opinion.
I have slept on floors, in cars, in the open, in snow caves, on the 'tailgate' of a firetruck at a call (was after five straight hours of dealing with a situation), in a chair, in a canoe, etc. All in all, I prefer the mattress. That doesn't help you, I know. Basically, I have always been grateful just to have a roof over my head, so I'll have to give this some thought.