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DIY Tempurpedic? 26 Apr 2021 09:27 #1

I have a bed in box mattress that I hate and plan to return. In the mean time I bought a Tempurpedic 3 inch topper for it and really like that. Should I buy a full Tempurpedic mattress or just buy a 6 inch foam core and cover and then attach my 3 inch topper to it to make my own? Is 3 inches going to be enough of a comfort layer or will I need a transition layer too? If so, what should I use for a transition layer?
Am I going to be able to get a similar enough feel to the full tempurpedic or is it not going to be even close? Right now on my existing mattress it feels pretty close enough to the one I tried in the store, but it's on a full mattress and not just a foam core. The Tempurpedic I'm looking at is the Adapt, which has an additional transition layer between the top and poly foam core. The price difference is like $250 for a poly foam core, vs. $3000 for the mattress, so it's worth trying to save that kind of money if possible.
Thanks

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DIY Tempurpedic? 27 Apr 2021 13:45 #2

Hi elektrobank.

So sorry to hear of your bad bed-in-a-box experience, but it's great that you've got a topper you love!

We won't be able to predict or make a specific suggestion or recommendation about which mattress or combination of materials and components or which type of mattress would be the best "match" for you in terms of "comfort", firmness, or PPP (Posture and alignment, Pressure relief, and your own Personal preferences) or how a mattress will "feel" to you or compare to another mattress based on specs (either yours or a mattress), sleeping positions, health conditions, or "theory at a distance" that can possibly be more reliable than your own careful testing (hopefully using the testing guidelines in step 4 of the tutorial) or your own personal sleeping experience.

And, without knowing more about your sleeping stats, it's hard to make any specific suggestions with regards to a DIY, but a DIY can be extremely rewarding when approached with patience and a sense of adventure.

Is 3 inches going to be enough of a comfort layer or will I need a transition layer too? If so, what should I use for a transition layer?


Without knowing your sleeping position or BMI, I am going to venture to say that 3" is likely enough of a comfort layer. A lighter sleeper will sink into the top layer and this could be soft enough for their pressure relief needs. Having a middle "transition" layer would be partly to add to the pressure relieving qualities of the softer thinner layer and partly be for support (lighter people don't need the same firmness level to "hold up" their heavier parts). On the other hand, a heavier person will mostly "go through" the comfort layer and use most of the next layer for pressure relief (heavier people generally need thicker firmer comfort layers to achieve the same softness as a lighter person experiences on softer foam) and then the much firmer support layer (that wasn't being utilized nearly as much by the lighter person) would be their support layer. In other words ... different layers in a mattress can perform different functions for different people.

Am I going to be able to get a similar enough feel to the full tempurpedic or is it not going to be even close?


Every layer and component in a mattress (including the cover and any quilting materials) will affect the feel and performance of every other layer and component and the mattress "as a whole" so unless you are able to find another mattress that uses exactly the same type of materials, components, cover and quilting, layer thicknesses, layer firmnesses, and overall design (which would be fairly unlikely) then there really isn't a reliable way to match one mattress to another one in terms of "comfort", firmness, and PPP (Posture and alignment, Pressure relief, and your Personal preferences) based on the specifications of the mattresses (even assuming that you can find out all the specifications you would need for both mattresses you are comparing in the first place).

Because there are so many objective and subjective elements involved in matching one mattress to another and because different materials or components can have the same quality in terms of density and durability and even the same design in terms of layer thickness but still have different performance properties or "subjective feel" ... matching one mattress to another from the perspective of a mattress designer and from the perspective of a consumer can be as much an art as a science.

I would suggest instead on focusing on getting the best support and comfort you can with your DIY, and worrying less about how similar or different it is to the tempurpedic mattress.

If you're pretty convinced by the tempurpedic, we can talk more in depth about that, too!

Thanks!
NikkiTMU
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