G'day Rebecca,

When you say 'v Coleman' I'm assuming you're referring to the Big Sky Bed?  In which case the big sky is like a classic trundle style bed from the 70's/80's.
It has a tubular frame with a fabric bed attached via springs, and a separate foam mattress on the top which can be removed.
The Quest Flat Fold bed is just a standard stretcher that folds instead of collapses, with some quilted padding.
Some campers may still want to add a mattress into this sleep set up.

Hope that helps!

G'day Rebecca,

Potentially over a long period of time if you've stayed put and the stretcher is in the same place, but its generally not something that we'd see happening in normal camping situations.
I've worked in the industry for a long time, and its not something I've ever seen happen.
Hope that helps!