Hot mattress - not memory foam- tried everything to stop heat

[phoenix]

Hi selder,

Welcome to the Mattress Forum!

Help. I am in terrible pain. I bought a “Prana Sleep Karma Sky Luxury Firm” at City Mattress. It supports me well, but after only 2-3 hours, my body actually hurts from the warmth. The whole mattress becomes warm to the touch. I have MS and the warmth makes me feel very sick. I was told there is no memory foam in it, and it would be cool. I was told in City Mattress that it is Talalay latex . The store said it " features a comfort layer of Everlast™ 400 and CertiPUR foams along with layers of PranaSleep Performance Talalay latex" . A salesman in another store looked up the stats and told me it’s 11" of layers contain the following: 2" quilt layer,1"soft HD polyfoam, 1" Firm HD polyfoam, and the Comfort layer contains: 1" latex , and 1" 4 lb density Everlast cooling layer. So the latex is deep within the mattress.

I’m sorry to hear about your pain and how sleeping warmer negatively impacts your MS.

The specifications I have on hand for the PranaSleep Karma Sky Luxury Firm are as follows.
Quilt Panel:
FR layer
1" plush 1.5 lb polyfoam
1" firm 1.5 lb polyfoam
Comfort layers:
1" Talalay latex
1" 4lb Everlast polyfoam
Support Core:
Pocketed coil spring unit with thicker gauge edge (15 vs. 13.75)
1" 1.45 base polyfoam

The mattress was represented to me as one that does not get hot.

The sleeping microclimate depends of course upon the entirety of the materials within the mattress, with the layers closest to your skin having the most dramatic impact. Additionally, all foams are insulators to a degree, and the more you sink into a mattress, the more potential there is for you to be more insulated and have less of your surface area exposed for heat exchange, and to sleep warmer.

The salesman in other store, thought it odd that the latex was buried so deep. I was told in City Mattress that the mattress was talalay latex and did not generate the heat.

I’m not sure why the salesman would be surprised with the location of the latex within the mattress, as designers will locate foams in in various regions within a mattress to achieve certain levels of comfort. This mattress uses a quilt panel with polyfoam in it (while there is quiltable latex it isn’t commonly used), and the latex is used just beneath that for a durable comfort/transition layer, which is quite common in innerspring mattresses. It all depends upon the comfort the designer is attempting to achieve with a particular model.

Foams themselves don’t “generate” heat (some are better at distributing your heat and retaining less heat), and Talalay latex tends to be the most breathable of all the common foams used within a mattress. But as I mentioned earlier, your mattress microclimate depends upon a number of things.

I have tried a gel pad, a cotten pad, and 2 wool blankets all covering the mattress. Sometimes all of these together. Nothing works.

Post #2 here speaks in a bit more detail about different sheet and protector materials that can assist with cooler sleep, as well as the effectiveness fo phase change materials used in some mattress pads and sheets. Natural fibers tend to work better for a mattress pad material. A thin wool pad might be able to assist a bit with being more “temperature neutral”, and it might also assist with having you sink in less into the mattress, which can also assist with sleeping warmer. Viscose can also be a good choice.

Is there any product with which I can block the heat.?

The heat is coming from your body, not the mattress, so the goal would be to find something that distributes your heat as best possible. If the mattress allows you to sink in too deeply and insulates you too much, there will be a limit to what a mattress pad and fitted sheets can do. If the suggestions in the links I’ve provided don’t work for you, there is a type of mattress pad that circulates water and does tend to provide relief to those with very specific heat issues. It’s called the chilipad, and you may wish to investigate it, but it is quite costly.

Phoenix