Hi tcat007,
SleepEz and FSF are both great value although there are some differences between the options they offer that may be more or less important for some people. They would certainly both make great choices.
Somewhat yes. The cover is one sided so you would need to remove the foam and put the layers back in the opposite order to “flip” it.
I think these two mattresses are far too different to make any kind of meaningful comparison between them outside of subjective comparisons from someone who had tested or slept on both of them (and their perceptions and assessment may only apply to them). I personally haven’t slept on either of them so I really have no idea.
The top few inches of foam are a big part of what someone feels on a mattress … at least initially … but I also don’t know the “comfort specs” of the foams in the Telluride (ILD, compression modulus, resilience, elasticity etc) and it’s very difficult to speculate about how a mattress that uses several types of foam in the comfort layers would feel in comparison to a very different mattress design in real life even if the specs are known. Different body types will also be more sensitive to different layers (they will “go through” some layers more than others and “come to rest” more or less deeply in the mattress) so how they felt and compared would be different for different people.
About the closest you could come would be to have someone “rate” them as either soft, medium, or firm in very general terms (and even here there are different types of softness) and hope that the meaning of the “word ratings” that were used are similar enough between the people who are rating them that they would be somewhat close approximations.
There really is no way to predict “in theory” how they would compare for someone else except in the very general or approximate and subjective terms based on personal experience.
I would think that the closest to an all latex mattress with 3x3" layers that Denver Mattress would have is their new iChoice latex mattress and topper although the ILD (firmness level) and layer thickness of the upper layers and topper would still be different (and they don’t offer custom choices).
There may be other retailers or manufacturers close to you that carry a mattress that may be a closer approximation and if you let me know your city or zip I’d be happy to let you know of any I’m aware of in your area.
Phoenix