Hi Dave,
When you first get started looking at latex, things can be confusing. This is because there are many variables to latex:
1) The manufacturing method. The oldest method is called Dunlop and a "newer" (but still around for decades) method is called Talalay. You can read about the difference in the manufacturing method here:
http://www.latexfoam.com/index.php?did=12#1
http://www.savvyrest.com/helpful-info/natural-dunlop-talalay
Some people prefer Dunlop latex, some people prefer Talalay latex. Some people think that Dunlop latex, being denser than Talalay latex, is more supportive. I have tried mattresses made from both types of latex, and I don't believe this is true - provided you get the right firmness.
2) The type of latex. Basically there are two types of latex:
a) 100% natural botanically grown latex
b) Blended latex (typically 70% synthetic and 30% natural)
Read about the differences here:
http://www.latexfoam.com/index.php?did=12#10
Here again you will find a wide range of opinions regarging what is "best." Some people are purists and like the 100% botanically grown. Some people believe that blended will be more durable. I have heard reports that the odor of latex (which is very mild and dissipates quickly) is stronger with 100% natural than with blended. Apparantly there is a difference in density between natural and blended. I think the type of latex is actually just a personal preference, and not one that will affect the performance of the latex.
3) The firmness of the latex. Latex comes in different firmnesses, or ILDs (indentation load deflection). The ILD rating of a piece of latex tells you how firm it is. The higher the ILD rating, the firmer the mattress:
http://www.sleeplikeabear.com/faq.html#5
Talalay latex is available in a wider range of firmnesses than Dunlop latex.
From all this, I can tell you:
~ do your own reading and look at several different websites to read up on latex mattresses.
~ if possible, reserach your area and try to find a latex bed to try out (not a Spring Free or other mattress that isn't 100% latex). It takes a little digging, but I was able to find three places to try 100% latex mattresses in both Talalay and Dunlop.
~ a heavier person like you needs a firmer mattress (for support) than a lighter person like your wife.
I ended up getting the Flobed blended talalay latex mattress. I am a heavier person and I have three layers of latex that are extra firm (36 ILD) with a softer 2" convoluted topper on top. Eagle2 on this forum is a heavier person who also bought a Flobed, but his is natural latex, and slightly less firm. We each bought a different type of Talalay latex but we've both been very happy with our purchases. But other latex mattress companies have great reputations too, and I think several people on this forum bought their beds from Saavy Rest and Sleepez.
The reason I like Flobeds is because the individual layers of latex are shipped with a zippered mattress cover. You assemble the mattress at home (not a big deal and kind of fun, if awkward). If, after trying out the mattress, the firmness isn't right, you can ship one or more layers back (inexpensively) and they will send you out new layers, softer or firmer as you prefer. And you have 90 days to try out the mattress and exchange layers until you have it just the way you like, or, if it doesn't work out, you can return the whole thing for a refund. The Flobed I believe is a shade more expensive than the other companies, but the exchange/return policy is the best.
One of the other benefits of getting a latex mattress is that you and your wife can each customize the firmness levels for your sides of the bed. You being heavier, probably need a firmer ILD than your wife needs. She can get softer latex and you can get firmer. I am not sure about other manufacturers, but with Flobed you end up with seven pieces of latex - three layers for each side (all individually chosen ILDs) plus a convoluted topper that goes over the top of everything (and of course everything is inside the zippered mattress cover).
One handy feature on the Flobed website is they have a firmness evaluator where you put in your height, weight, sex, preferred sleeping position, and preferred firmness level. I used it when I was shopping around for my mattress, and the Flobed firmness evaluator recommended I get two extra firm layers and a firm layer. I did not like this recommendation, because I like my mattresses to feel soft and cushy, so I ignored it and ordered a slightly softer configuration. Well -- I should have listened because I ended up sending the softer layers back and now have all three of my layers extra firm! I never would have guessed this is the way I'd go, but it's right for me.
If you're allergic to dust mites, latex is a natural repellant, and also, I believe several of the companies offer mattress covers with wool padding (this is what my Flobed has) which is also a dust mite repellant.
I hope this helps. Nothing is really a substitution for your own research though, and ultimately, you have to dip your toe in the water, call one or more companies, talk to them, and order one to try out. It was a little scary for me ordering a $2k mattress over the internet, but it was a very worthwhile purchase. And luckily there are several apparantly reputable (at least people on this forum seem happy with them) companies to work with. If you stick with Flobeds, Sleepez, or Saavy Rest, I'm sure you can't go wrong!
This message was modified Dec 26, 2009 by KimberlyH