Hi MidwestGirl,
The mattress you linked to seems to use good quality materials and has good value. I personally like the feel of a thinner layer of latex over memory foam because it puts a more breathable layer on top of the memory foam and has a feel I like ... but this of course is only preference and not an indication of quality. Of course only your personal testing can tell if it is suitable for you in terms of PPP (pressure relief, posture and alignment, and personal preferences) but it's certainly in the range of a mattress that would work for side sleepers.
The only specs they don't list are the type of latex in the 1 inch layer and the density of the base layer but these shouldn't be difficult to find out and are likely to be fine.
I looked at the reviews out of curiosity and the last one (the one star review) is a typical example of a consumer who for whatever reason picks the wrong mattress for their body type and sleeping style and then blames it on the mattress. The second review praising the mattress (5 star review) is just as bad recommending a particular mattress for "everyone" without regard to the different body types and sleeping styles of people and saying nothing about the mattress itself. At least the first review has good information about the reasons behind the choices made which have some value ... even though they still don't say anything about the quality of the materials themselves. These types of reviews (especially the second and third) say little to nothing about the quality or value of the mattress and are about the suitability of the choice itself.
Would you be willing to take a look at the website and see if there are any coil/spring mattresses you would suggest?
Like with all mattresses ... the materials determine the quality. Most of the innerspring mattresses don't have the information you would need to make an informed choice or even give an opinion but some of the Omaha Bedding models do include some meaningful foam density information which shows that even in their lower priced mattresses such as the
Imperial Royalty Plush that they are using 1.5 and 1.8 lb foams which is suitable for this price range and better than many others (if you can even find out in the first place) so these would have better than average value. This still says nothing about the suitability of any particular choice for your needs and preferences but at least you know that in the lower price ranges you would be looking at that the quality of materials are better than the "norm". They told me that this information may also be available for some of their Southerland mattresses but I didn't see it on their site.
Most of their other mattresses don't list complete information but I do know that to the degree their manufacturers tell them ... NFM are open and helpful and will provide this information to their customers so if you have a particular mattress that you like and they can give you the information about the type and density of the foams that are in it ... then if you post them here I'd be happy to give you some feedback.
Phoenix