Hi Csj0952,
Yes, all of their Talalay is blended, and I personally wouldn’t have a concern whether the Talalay was blended (most of what is produced worldwide) or natural. They would be very durable and high-quality materials, and in the past Talalay Global has put forth information stating that their Talalay that is blended is slightly more durable than their natural line. There’s more detailed information about thishere.
There is more involved in the value of a mattress that just price, and there is more about the 3 most important parts of the “value” of a mattress purchase in post #13 here which can help you make more meaningful quality/value comparisons between mattresses in terms of suitability (how well you will sleep), durability (how long you will sleep well), and the overall value of a mattress compared to your other finalists based on suitability, durability, and all the other parts of your personal value equation that are most important to you (including the price of course and the options you have available after a purchase if your choice doesn’t turn out as well as you hoped for). You can also look at the ability to customize the SleepEZ product, and there may be advantages that you like dealing with your local retailer for the PTB product.
I don’t know that you’d notice too much of a difference on a firm all Talalay or all Dunlop latex mattress using similar layers, but technically the Talalay will breathe better.
There is no such thing as “pure” Talalay – that is just a marketing term used in the name of Pure Talalay Bliss. Talalay can be either synthetic, blended or natural, and all would be good quality and durable materials. While it may be more detailed than you desire, there’s more about durability here.
As for temperature regulation, wool certainly is a very good material at being more “temperature neutral”. In very general terms … the materials, layers, and components of a sleeping system that are closer to your skin will have a bigger effect on airflow, moisture transport, and temperature regulation than materials, layers, and components that are further away from your skin and softer mattresses or foam toppers will tend to be more “insulating” and for some people can sleep warmer than firmer versions of the same material.
Overall, it’s not really possible to quantify the sleeping temperature of a mattress for any particular person with any real accuracy because there are so many variables involved including the type of mattress protector and the sheets and bedding that you use (which in many cases can have just as significant an effect on sleeping temperature as the type of foam in a mattress) and on where you are in the “oven to iceberg” range and because there is no standardized testing for temperature regulation with different combinations of materials … there is more about the many variables that can affect the sleeping temperature of a mattress or sleeping system in post #2 here that can help you choose the types of materials and components that are most likely to keep you in a comfortable temperature range.
I hope that helps.
Phoenix