Savvy Rest to SleepEZ conversion

[phoenix]

Hi Boo,

Thanks for the update … I appreciate it … and it’s great to hear that your mattress is working out well for you

At the moment, I feel like the side that is absolutely heaven is (top), soft Talalay, soft Dunlop, Firm Dunlop. My question is, since it’s not blended (should wear longer), and 2 layers of soft Talalay, is it going to give out sooner than I expect. That is why I need to give more time before I start changing around layers and talk to Shawn. The other side (top) soft Talalay, med. Dunlop then firm Dunlop. I would like a little more bounce, but still firm…I’m thinking maybe ST, MT, FD…just an idea. Someone needs to confirm to me that Talalay will hold up and that I will not have sagging issues (sure like Talalay’s resiliency), that is my main question after only 4 nights.

You are the only one that can feel what you feel on your mattress or on different layering combinations so I’ll leave your choice of layering to your own personal experience and “best judgement” but I can certainly help with some of your questions about durability.

There is more about the different types and blends of latex in post #7 here and there is more about some of the differences between blended and 1005 natural Talalay in post #2 here.

In very general terms latex is the most durable of all the foam materials regardless of the type or blend and I would treat the choice between different types and blends of latex as a preference and budget choice more than a “better/worse” choice. I certainly would have any durability concerns with any type or blend of latex.

Having said that … A mattress will generally tend to soften and break down from the top layers down because ongoing foam compression and deflection is the primary reason that foam materials will tend to soften and break down over time. In an apples to apples comparison between the same types of foam … softer foam layers will compress more than firmer foam and layers that are closer to the top of the mattress will tend to compress more than layers that are deeper in the mattress so any softer foam layers or layers that are closer to the top of your mattress will generally be less durable than the same type of foam in firmer versions or that are deeper in the mattress.

Of course with a component mattress if one of the layers softens before the others and this results in the loss of comfort and support and you are no longer sleeping well on the mattress then you can just replace the individual layer instead of replacing the whole mattress.

In lower ILD’s (firmness levels) … softer 100% natural Talalay may also be a little less durable than blended Talalay but if your mattress is in a suitable comfort/support range and isn’t “on the edge” of being too soft for you (see post #2 here) then durability wouldn’t be a concern with any type or blend of latex.

While there is no way to quantify how long any mattress will last for a specific person or predict exactly when you will decide to replace it because it is no longer suitable or comfortable for you (because this is the only real measure of durability or the useful life of a mattress that really matters) because there are too many unknowns and variables involved that are unique to each person … if a mattress is well inside a suitable comfort/support range and isn’t close to the edge of being too soft when it is new and you have confirmed that it meets the minimum quality/durability specs that are suggested in the guidelines here then it would be reasonable to expect a useful lifetime in the range of 7 - 10 years and with higher quality and more durable materials like latex or higher density memory foam or polyfoam (in the comfort layers especially) it would likely be in the higher end of the range or even longer and the chances that you would have additional “bonus time” would be higher as well.

There is also more detailed information about the many variables that can affect the durability and useful life of a mattress in post #4 here.

Phoenix