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The best foundations or base for a latex or all foam mattress 26 Apr 2018 13:16 #1

I cannot figure out how to create a new topic so I'll have to resort to replying here... I have purchased a topper that I love but I'm realizing it doesn't pair well all my interspring pillow top mattress. My interspring below sinks and causes the topper to dip and I still have back pain... So I'm going to use the old interspring in another room and buy a Polyurethane foam base layer to go with it. My topper is the 3" tempurpedic topper which I think is 5.34lb or something but this topper is amazing it gives just the amount of support I need and want. I have researched endlessly trying to make a good decision on ILD and weight and all that of at least an HD or HR polyurethane. I'm just stressing thinking I'll get a 2.8lb ILD of 35 and it'll make the topper feel too firm... So I'm 152 lbs and if it helps to judge what kind of support I will need...I love the tempurpedic topper feel. I live in Berea Kentucky and cannot find a local manufacturer to go-to so maybe you can help with that... Or please tell me some reputable companies that I can buy my Polyurethane base support later from... And if you can guide me a bit I don't want the base to sink in too much and cause the topper to dip but I also don't want concrete firmness cause I'm afraid then the topper will feel too hard. Again I weigh never over 155 my weight fluctuates a little I have a slim frame and my shoulders aren't wide I still look like a young boy. My partner has an even smaller frame. I don't want to buy too thick of a base layer that'll be more than we either need. And I'm willing to invest in maybe another memory foam if I have to something like a aerus 4lb 1-2inch to go on top of my tempurtopper. Some mattresses use a 2 in softer Polyurethane then a 3 in firmer polythene and idk if I even need that it kinda seems if the Polyurethane base is too soft my to tempurtopper will sink too much. Another thing I considered was to buy a good cheap memory foam mattress that is firm but they all have a comfort layer and I'm scared that softer low density memory foam will ruin the potential of my tempurtopper. Thank you for reading all this and I am excited to hear back.

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The best foundations or base for a latex or all foam mattress 30 Apr 2018 22:09 #2

Hi Bradbaker1989.

Welcome to our Mattress Forum! :)

I have purchased a topper that I love but I'm realizing it doesn't pair well all my interspring pillow top mattress. My interspring below sinks and causes the topper to dip and I still have back pain... So I'm going to use the old interspring in another room and buy a Polyurethane foam base layer to go with it.


I am not sure how old your existing innerspring mattress is, but as it seems that it started to soften and break down then it's much less likely that a topper will be an effective solution because you can't compensate for soft spots or dips in the mattress by adding toppers because they will just bend into the softer areas underneath them and any effect they have will tend to be partial or temporary at best. if your mattress is not old and is covered by warranty, your best option is to get it replaced as a warranty claim for excess body impression. If it is old, or cannot be replaced under warranty, then attempting to make an older, excessively worn with body impressions mattress last a good while longer by replacing your tempur topper with another topper (whether HD, HR, Aerus or any other material) is not something I would advice.

I'm just stressing thinking I'll get a 2.8lb ILD of 35 and it'll make the topper feel too firm... So I'm 152 lbs and if it helps to judge what kind of support I will need...I love the tempurpedic topper feel.

And if you can guide me a bit I don't want the base to sink in too much and cause the topper to dip but I also don't want concrete firmness cause I'm afraid then the topper will feel too hard.


Even though you love your tempur topper, I would not venture to build a mattress “around” it because a topper’s primary function is to contribute to the overall comfort and the most important priority is your sleeping posture and alignment that comes primarily from the support layers within your mattress. If you sleep with your spine or joints out of alignment then you may not feel that something is wrong until you have slept that way for some time and your body begins to produce "symptoms" once you have slept out of alignment for long enough. In looking for the best mattress/topper combination I would also keep in mind that all the layers in a mattress interact together and sometimes even seemingly small changes can change the feel and performance of a mattress quite significantly.

The only way to know for certain whether a specific mattress/topper combination is a good "match" for both of you in terms of comfort, firmness, and PPP is based on your own careful testing or personal experience on the combination. If you can't test the combination in person then there will always be always some risk and uncertainty involved shopping for a mattress that will pair well your topper because the specifics of the mattress itself along with your own body type, sleeping position, and preferences can affect which specific mattress would be a suitable choice to work with your specific topper.

This being said you have the option of creating your own DIY with either a poly, or latex core layer, or with a new “regular” innerspring mattress. (You can probably find a new regular innerspring mattress at a pretty good price that you can negotiate at a local retailer) When shopping for a new mattress or DIY componentry I would especially make sure you read the durability guidelines here and post #4 here ~ about the factors that can affect durability and the useful life of a mattress.

While a2.8 lb poly base would be a good and durable material ... It's not possible for me to assess how a 35 ILD in combination with your existing topper or combinations of materials or components will work for your specific needs because the first "rule" of mattress shopping is to always remember that you are the only one that can feel what you feel on a mattress and there are too many unknowns, variables, and personal preferences involved that are unique to each person to use a formula or for anyone to 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 (see mattress firmness/comfort levels in post #2 here ).

I live in Berea Kentucky and cannot find a local manufacturer to go-to so maybe you can help with that... Or please tell me some reputable companies that I can buy my Polyurethane base support later from...


We have decided to discontinue the provision of listings of potential retailers in various geographic regions (unless they are already approved site members), because of the difficulty in maintaining such lists in a retail landscape that is constantly changing, and most importantly the confusion it was creating with the consumer members who incorrectly assumed that these businesses had indeed gone through the strict qualification process and were approved as members of The Mattress Underground. Such an assumption is unfair to both the consumers seeking assistance, as well as the very businesses and manufacturers who meet the criteria to become Trusted Members of The Mattress Underground.

You can perform a forum search and you can type in the key term any city or area you would be closer to and consider driving such as Lexington or any other area and see what other businesses have been discussed in that region which may be helpful to you. This being said there In the last section of Post #3 there are listed some outlets in Lexington, KY that you might find useful in your search.

Another thing I considered was to buy a good cheap memory foam mattress that is firm but they all have a comfort layer and I'm scared that softer low density memory foam will ruin the potential of my tempurtopper.


I would avoid placing your topper on a cheap firm memory foam mattress, as it will likely wear out or break down because foam softening and the breakdown or permanent compression of the materials or components in the mattress which will have different effects on different people. Any specific estimates for how long a particular person might sleep well may be a "rough guess" at best, but what can be said with certainty is that higher quality materials take much longer to soften or change and will maintain their comfort and support and last longer than lower quality materials. Generally speaking latex is the most durable of the different types of foam materials, higher density memory foams and polyfoams will last longer and maintain their properties longer than lower density foams of the same type, and that the layers both above and below any specific material or component in a mattress will affect the durability of that material as well.

Phoenix
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The best foundations or base for a latex or all foam mattress 07 May 2018 10:05 #3

Okay thanks so much and I'll look into the individual articles. Before seeing your reply to my question I had intended on buying the Zinus Green Tea Memory Foam 6" which has a 1" comfort layer and a "high density" support layer. I considered this is the best price and it is reviewed to be great by commenters and I've found articles saying it's the best mattress in the price range. It is certipur certified which is important cause I have 4 pets and I don't want any kind of unhealthy smells coming from the bed and make any of them or myself ill.

Considering you saying I basically have to test out mattresses to see what I like. If I go try out tempurpedic mattresses and use the same density support and idk if they sell one anymore bthat has only the 5lb density followed by a high density base layer... But the original or one of the first ones had two layers. 3" 5lb tempurpedic foam (my topper exactly) with a high density base layer. So if I can find a bed that uses 5lb memory foam that feels like what I have which is firm but you slowly sink it's pretty firm tho... But if I find a bed with the same feel comfort foam and that has a HD base layer and if I find one I like... And if it's just two layers... Would I be able to just find out the density and ILD of their support base layer and then just buy that?

And btw my mattress is too old to return or replace. It still looks to be flat and I'm using a side that wasn't used much but I think half the prob or possible all of the problem cause I can just tell the bed underneath is sinking and causing the topper to sink and I wake up hurting cause of the lack of support. My old bed tho is great it's a pillowtop on both sides and interspring in the middle... But I just wanna use it as a guest bed and get myself a new one.

The reason I want to build the bed is because I have invested 400 in this topper that I can't return and I want to use it and don't want to pay so much out for a mattress and just want to use the same density base layer used in a bed that I find to be supportive and that way it's not so much money. The topper is brand new.

So do you have any suggestions about the Zinus mattress or do you think me finding a bed that uses 3 inch of 5lb foam followed by a high density base layer and find the one that holds me up properly and then ask about the exact density and ILD. And then just buy a base layer??

I will say that laying this topper even on the floor as hard as the floor is it makes the topper so much more comfortable cause of course the floor doesn't sink... So I'm thinking I need a base layer that is pretty firm... But I'm sure I'll benefit from a little bit of give. The topper tho is doing the comfort and partly is pretty supportive. It's just I need a base layer that won't sink too much. Would the Zinus' 1" of comfort foam cause the same kind of sink that my pillowtop does and just I end up with the same problem?? I feel think if softer it should give more comfort to my topper and then a relatively hard layer below would definitely get the job done... But I don't know...I don't prefer interspring mattresses btw for a base layer because I don't want a bouncy bed I want it to isolate movement cause I wake up really really easy.

Thanks for your help!!

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The best foundations or base for a latex or all foam mattress 08 May 2018 21:49 #4

Hi Bradbaker1989.

Before seeing your reply to my question I had intended on buying the Zinus Green Tea Memory Foam 6" which has a 1" comfort layer and a "high density" support layer. I considered this is the best price and it is reviewed to be great by commenters and I've found articles saying it's the best mattress in the price range


While you may have read somewhere that Zinus is “the most popular low budget brand”, it wouldn’t have been here on this site. And even if you had read somewhere that someone considered this to be the case, while other people's comments about the knowledge and service of a particular business can certainly be very helpful, always keep in mind that you are the only one that can feel what you feel on a mattress and I would be cautious about using anyone else's suggestions, experiences or reviews on a specific mattress (either positive or negative) as a reliable source of information or guidance about how you will feel on the same mattress or how suitable or how durable a mattress may be for you. In many if not most cases this can be more misleading than helpful because a mattress that would be a perfect choice for one person or even a larger group of people in terms of comfort, firmness, and PPP (Posture and alignment, Pressure relief, and your own Personal preferences) may be completely unsuitable for someone else to sleep on (even if they are in a similar weight range). In other words, other people's experiences in general won't tell you much if anything about the suitability, quality, durability, or "value" of a mattress for any particular person (see post #13 here ).

Regarding Zinus… I would also read post #6 here about mattresses imported from Asia or China and which may have been compressed for long periods of time in either shipping or storage before being purchased, and being sourced in China would make this somewhat of a risky purchase IMO. The “High density” they use to describe their product… is a term used for any foam greater than 1.5lbs in density and as Zinus does not freely share their specs it is very likely that they use the lowest end the “high density” spectrum. They do not list the firmness (IFD) of either the 1” memory foam layer or 5” base support foam and the 6” Green Tea appears to have a “egg crate” cut on the top of the 5” base foam. This will soften the base foam, at least on the top section that is cut this way. All in all they use mostly low / mid quality materials although they are CertiPur certified. They are most commonly sold under many brand names in big box stores and elsewhere. Whenever you see "green tea" you can assume the manufacturer is Zinus.

It is certipur certified which is important cause I have 4 pets and I don't want any kind of unhealthy smells coming from the bed and make any of them or myself ill


You are correct Zinus is CertiPur certified but just to clarify a few things about your prospective purchase from Zinus. CertiPur is a testing standard that tests for harmful substances and VOC's in the polyfoam and memory foam used in mattresses. They have a list of mattress manufacturers here which are certified (which includes Zinus) and the foam producers that are certified are listed here . You can see what they test for in more detail here and here The foams are certified to not be harmful to the environment in regards to ozone depletion, not use certain chemicals and have low VOC emissions. It does not guarantee a foam/memory foam mattress will be without odor.

The reason I want to build the bed is because I have invested 400 in this topper that I can't return and I want to use it and don't want to pay so much out for a mattress and just want to use the same density base layer used in a bed that I find to be supportive and that way it's not so much money. The topper is brand new.


You may wish to peruse and compare with some other low budget options, better quality options that you may wish to consider.
Sedona Sleep sells a polyfoam base mattress (Trusted Member of this site)
www.addable.com/ sells a memory foam mattress.
Nest Bedding has their Love & Sleep mattress. (Trusted Member of this site)
DouglasBed From site member Novosbed. Canadian-only. Memory foam over polyfoam layer and polyfoam base.
Christeli has one memory foam option (Trusted Member of this site)
LuxiSleep has a low budget option as well. (Trusted Member of this site)

I will say that laying this topper even on the floor as hard as the floor is it makes the topper so much more comfortable cause of course the floor doesn't sink... So I'm thinking I need a base layer that is pretty firm... But I'm sure I'll benefit from a little bit of give. It's just I need a base layer that won't sink too much. Would the Zinus' 1" of comfort foam cause the same kind of sink that my pillowtop does and just I end up with the same problem?? I feel think if softer it should give more comfort to my topper and then a relatively hard layer below would definitely get the job done...


If the topper works well enough for you on the floor, then you are correct that a firm enough mattress under it will help with both adding some comfort and to raise it off the floor. I am not sure on which part of your personal value equation your mattress selection was based, as you mentioned mostly price and other people’s reviews or opinions, but If you are working with a more restricted budget, post #4 here and the posts it links to also include many of the better lower budget online options I'm aware of (Zinus is not on this list). If you chose to go with this mattress for different reasons keep in mind that depending on your needs and personal preferences the mattress could work as a base for your topper but I will have a shorter useful life. If the product does not perform as well as you are hoping for at least you’d have 100 night in home trial (which is standard in the industry for most bed in the box mattresses)

Some of the mattresses from Ikea may also be worth considering (see post #3 here and the posts it links to) There are also some lower budget latex and latex hybrid options that are listed in posts #3 and #4 here that are in "relatively" lower budget ranges (although some of these may be more than your budget). Some of the new "simplified choice mattresses" that are also in relatively low budget ranges (from $600 to $1000 queen size) are also listed in post #2 of this topic and may also be worth considering.

Hope this helps.
I'm looking forward to finding out what you end up deciding ... and of course any additional comments or questions you may have along the way that I or any of the Expert members of the site can help with.

Phoenix
Researching for a mattress?... Be sure to read The Mattress Shopping Tutorial.
Click here for TMU Discount Codes if purchasing from Our Trusted Members.
For any mattress questions Ask An Expert on our forum

Please Log in or Create an account to join the conversation.

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