I set up my Nano the other, cold night. A change from the much stiffer beds of Clarks. The Clarks are not longer; one is the same width as the 48" Nano, the other only a bit wider, but held that way by spreader rods..
Of course the experience was different, stretchy as the Nano is in comparison. But, if a person fit, as I did, I think he or she would adapt after a few nights. The challenge, I think, would be to set up correctly to anticipate comfort after a few hours, stretchy as the Nano is in comparison to others.