MySide Series 6 mattress by Kingsdown

We found a MySide Series 6 mattress by Kingsdown at Sleepys we really like however the price is quite high. I know there are equivalent names for the same mattress. Do you know if there’s another place we can find this mattress at a lower price?


Hi Johnnyj,

Not only is the price unbelievably high considering the cheap polyfoam in it … I would not recommend this mattress for anyone regardless of circumstances, weight distribution, or sleeping position. It has the following specs …

Mattress Build

.7 Oz. Fire Resistant Fiber
1 1/4" Quilting Poly
1 Oz. Clima Touch Fiber
1 1/2" Qualatex Cool Wave Plus Pad
1" Super Soft Air Flow Cushion
1" Kingsfoam Airflow Cushion
2" Kingsfoam Airflow Cushion
1/2" Memory Foam
1" Firm Kingsfoam
3/8" Foam Lumbar Support
9" Wrapped Coil System
1" Flexatron
1" Base Foam

It has over 8" of polyfoam in it and only 1.5" of this could even remotely be called good quality (the qualatex). In a mattress like this … there is so much polyfoam over the innerspring that even having an innerspring is almost pointless. This mattress is a recipe for disaster both in terms of body alignment and in terms of the likelihood of foam breakdown and loss of support and body impressions. I wouldn’t buy this mattress at any price and much higher quality mattresses that use decent materials are available at local independent manufacturers and many other places (not the chain stores) at much better value than even the best so-called sale prices of a mattress like this.

The only mattress at Sleepy’s that I would likely consider would be one of the Pure Latex Bliss models and even here a mattress that uses the same materials could be purchased for much less at a true factory direct outlet or independent sleep shop. I would strongly advise you to walk past sleepy’s and any other chain store like it (for anything other than mattress testing) because if you purchase anything there and don’t like it … you will be trapped into a “comfort exchange” for another poor quality mattress at an even higher price. This forum thread may be worth reading

If you let me know what city you live in … I would be happy to look and see if I know of any higher quality outlets that are near you. You can certainly do much better IMO



First of all – thank you so much :slight_smile:

I’m by Newtown Square, PA. I’m 5’10" / 175lbs side sleeper, and my wife is 5’4"/120lbs side sleeper. Wife has scoliosis. Both have some back problems.

What do you think we should try?

Hi Johnnyj,

Perhaps the best place to begin is here The basic functions of a mattress - Overview - The Mattress Underground

The best way to look for a mattress is to focus on the materials rather than the brand. In practical terms … most comfort layers will either be memory foam or latex or polyfoam but it’s important to make sure that the comfort layers in a mattress use good quality materials. The lower quality/density foams used in the comfort layers of most national brands (or any lower quality material)… should be avoided because they will soften and break down more quickly than higher quality materials. Other less common options include comfort layers made of natural fibers, microcoils, or buckling column gel. These less common or more specialized options may be suitable in some cases however in general terms your choice will usually be between memory foam and polyfoam (make sure they are the highest quality available in your budget range), and latex. If you are forced to choose a comfort layer that has more than an inch of lower density polyfoam because of a very low budget … then it should only be from a factory direct manufacturer or specialty sleep shop that will be able to tell you exactly (and truthfully) about the quality of the polyfoam and how long it can be reasonably expected to last.

Latex has many advantages over memory foam however there are some who are used to sleeping on memory foam and like the feeling of sleeping more “in” the mattress than “on” it. In terms of pressure relief they are roughly equal and they are both good at motion isolation although memory foam would have a slight advantage here. In terms of support, breathability, temperature control, health concerns, environmental impact, and durability, latex is generally a better performing material. It’s also however a more expensive material and comes in different types (the raw material used to make the foam can be either natural, synthetic, or blended rubber and is made using two main methods which are dunlop or talalay). More information about the different materials used in comfort layers is here Mattress comfort layers - Overview - The Mattress Underground

The support layers of your mattress may be an innerspring, polyfoam (its not as big an issue in the support layers of a mattress as it would usually be higher quality and firmer when used here), or latex foam. The choices here are usually about how well the material or layer can keep you in alignment, overall feel, budget, and durability as all three materials can be made to provide good support. The best performing and durable material here is also latex. Innersprings and polyfoam can be used for lower budgets or in the case of an innerspring for a different overall feel. More information about support layers can be found here Mattress support cores - Overview - The Mattress Underground

In terms of value … the best choices are usually local independent mattress manufacturers who sell factory direct. Other good options include smaller sleep shops who sell smaller more local brands or higher quality but smaller national brands and are open about the materials inside every mattress they sell (so you can make sure there is little to no low quality polyfoam in the comfort layers). These types of outlets are almost always the most knowledgeable about what you truly need in a mattress (as opposed to what they want to sell you) and more open about what is in the mattresses they sell. The larger chain store outlets in some cases sell mattresses that are useful for testing purposes to give you a good idea of the type of construction that would be best for your unique needs. They rarely have good value however.

If your field testing gives you a clear idea of the type of construction and layering that is best for you but there is little available in your local area to actually buy that has reasonable value … then there are also online outlets that can “duplicate” the type of mattress you prefer and that do have very good value. Even at the best “so called” sale prices … most people end up paying 50% or more than their mattress is really worth, buying a mattress that is not suitable for their needs, or buying a mattress that uses too far too much poor quality materials that will break down far too soon.

The thickness of the layers … especially the comfort layers … is also a very important part of how suitable a mattress is for a particular weight, body shape, and sleeping positions. Side sleepers usually need a comfort layer “in the range” of 3" and this is a good place to start your testing. It can be slightly more or less depending on body weight and shape. Latex comes in a range of softness choices while memory foam would all be considered soft (in actual use at normal sleeping temperatures even though it can be quite firm when it is colder). This comfort layer needs to be thick enough to relieve your pressure points, to “fill in the gaps” in your sleeping profile (lumbar/waist area especially), and to allow your shoulders to sink in deeply enough to be in alignment with your hips (to relieve shoulder pressure and to help keep your spine in alignment).

The support layers need to hold up the heavier parts of your body (primarily the hips) which tend to sink down into the mattress too deeply and put your spine out of alignment which can lead to or aggravate back issues. They are the part of your mattress that primarily keeps you in alignment. In some cases, the different types of layering or materials or design can also “help” the comfort layers with pressure relief. As long as a support layer keeps you in alignment in all your sleeping positions … then the choices between them are more about how they feel, how durable they are, and their overall cost and value.

The durability of the different layers of a mattress is (or at least should be) one of the biggest parts of its cost and overall value.

In your area (General Philadelphia area)… there are a few local or regional factory direct manufacturers that may be well worth visiting. They include …

ADMIN NOTE: Removed 404 page link | Archived Footprint:
Regional factory direct that makes a wide range of mattresses Local factory direct that also makes a range of mattresses

ADDED: Post #4 here has a more complete list

Some local outlets that may be useful for testing include Has a brand called Pure Latex Bliss which has different models and can also include different toppers. These are very useful for mattress testing and the specific layering of each model is known and can be easily duplicated at a better value.

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Also carries Pure Latex Bliss at their showroom in Philadelphia

EDIT: Sleepys no longer carries PLB mattresses

Take your time and don’t let anything or anyone create a false sense of urgency with “fake sales” or other sales techniques. High value and high quality mattresses are available every day of the year from reputable outlets. A few guidelines that can help you “cut through the noise” of all the misleading “stories” you will come across are in reply #6 here.

Hope this helps a bit and certainly feel free to post with any questions along the way :slight_smile:


Thank you Phoenix (I cant thank enough!).

I’m going to go to Sleepy’s and check out their Pure Latex Bliss beds. I noticed that they have 4 versions 8", 10", 11", 12" – what would you say are the differences in those? Again, wife 120lbs side sleeper (back problems), me 170lbs side sleeper back problems?

Best Regards

Hi johnnyj,

The main difference between their models is in the thickness and ILDs (softness firmness) of the different layers on top (pressure relief) and underneath (support layers). They also have both a 2" and a 3" topper which is made of 14 ILD talalay latex that can be added over any of their mattresses for those who are looking for a softer feel. The lower ILD toppers would be more suitable for those that are lighter weights.

With side sleeping … a good “starting point” for a side sleeper is about 3" of latex in the range of 19 - 24 ILD and then progressively firmer layers underneath this are what keeps you in alignment (prevents your heavier parts from sinking in too far). Curvier bodies (as in narrower waists and wider hips and or shoulders) can sometimes use thicker layers for pressure relief and to help support the lumbar area. Heavier weights (which of course you’re not) will also typically use either thicker or firmer comfort layers. Lighter weights (or more evenly distributed weight profiles) will often do well with lower ILDs in comfort and support layers. The key with any mattress is to first test for pressure relief on your side (making sure there are no pressure points in your hips and shoulders particularly and to make sure the “gaps” are filled in (your hand doesn’t slide under your waist easily).

Once you have an idea of the pressure relief thickness and ILD that works for you … then test each mattress for alignment (to make sure your shoulders are sinking in enough and that your hips aren’t sinking in too far so that your spine is in its natural alignment). Your natural spinal alignment on your side is straight and on your back would be its natural “S” curve as it is when you are standing up straight with good posture.

The specs of the different Pure Latex Bliss mattresses (without the toppers) are at the end of this post for reference. I wish all national brands were this open about the materials and layers in their mattress :slight_smile:


NOTE: The 1" Support Stabilization Base Foam 1.8oz in the specs below (used for the easier handling and movement of the mattresses during construction) has now been replaced with 1" ultra firm (50 ILD) talalay latex. A nice change even though the 1" of poly on the very bottom as a stabilizing layer would not have affected the feel, performance, or durability of the mattress.

Specifications Beautiful

Latex BLISS uses 450-480 Gram Weight fabric
Latex BLISS Milliken's Paladin Fire Resistant Barrier
3" Natural Talalay Latex 19 ILD
2" Natural Talalay Latex 24 ILD
6" Natural Talalay Latex 36 ILD
1" Support Stabilization Base Foam 1.8oz
12" Mattress Height
9" Steel Foundation
21" Overall Mattress & Foundation
20 Years Limited Warranty 10/10

Specifications Nutrition

Latex BLISS uses 450-480 Gram Weight fabric
Latex BLISS Milliken's Paladin Fire Resistant Barrier
2" Natural Talalay Latex 19 ILD
2" Natural Talalay Latex 28 ILD
6" Natural Talalay Latex 36 ILD
1" Support Stabilization Base Foam 1.8oz
11" Mattress Height
9" Steel Foundation
20" Overall Mattress & Foundation
20 Years Limited Warranty 10/10

Specifications Nature

Latex BLISS uses 450-480 Gram Weight fabric
Latex BLISS Milliken's Paladin Fire Resistant Barrier
2" Natural Talalay Latex 19 ILD
1" Natural Talalay Latex 28 ILD
6" Natural Talalay Latex 36 ILD
1" Support Stabilization Base Foam 1.8oz
10" Mattress Height
9" Steel Foundation
19" Overall Mattress & Foundation
20 Years Limited Warranty 10/10

Specifications Pamper

Latex BLISS uses 450-480 Gram Weight fabric
Latex BLISS Milliken's Paladin Fire Resistant Barrier
1" Natural Talalay Latex 19 ILD
6" Natural Talalay Latex 40 ILD
1" Support Stabilization Base Foam 1.8oz
8" Mattress Height
9" Steel Foundation
17" Overall Mattress & Foundation
20 Years Limited Warranty 10/10

Specifications Peace

Latex BLISS uses 450-480 Gram Weight fabric
Latex BLISS Milliken's Paladin Fire Resistant Barrier
1" Natural Talalay Latex 28 ILD
6" Dunlop Core Synthetic Latex
1" Support Stabilization Base Foam 1.8oz
8" Mattress Height
9" Steel Foundation
17" Overall Mattress & Foundation
20 Years Limited Warranty 10/10

You sound like a salesmanthat doesn’t have this product to sell instead of an impartial advisor. You might want to find out the facts before you spout such vitriole.

Hello Anonymous,

The facts are listed in this thread (the layers of the mattress and what is in them) and throughout the website (regarding the different types of materials that are used in mattresses).

I also don’t sell any mattresses (which you would know if you’d read the site and the information on it which is the basis for my opinions) so I have no product to defend. I am an advocate for transparency and value no matter where I may find it.

If you would like to bring any more “facts” to bear on the materials in this mattress … or anything else that justifies their outrageous price or the sales tactics of the stores that sell them … then feel free to do so.

I am guessing you probably sell these mattresses … which is the reason why you “defend them” without bringing any facts of your own to the discussion?

I would welcome anything you would care to contribute to the discussion that would educate the readers of this forum about these or any other mattress or the materials in them … but in the absence of this, I’m at least happy that there are nerves being pressed which I have no objection to pressing :).

I had no illusions when I started this site that there wouldn’t be a few feathers ruffled. You are not the first and I hope you won’t be the last!


Anonymous is probably a Sleepy’s employee. As a former Sleepy’s employee I know that person must remain anonymous because to respond without receiving Executive officer approval, that person could face disciplinary action, including suspension or termination from the company.

As far as even considering purchasing any MySide mattress from Sleepy’s, be aware Sleepy’s has a contract with Kingsdown in which Kingsdown will not sell that series to any other retailer in Sleepys market area. That area goes from Massachusets to Virginia.In fact, Sleepy’s sister company, 1-800Mattres(AKA Dial A Mattress) does not offer the product. As a result of having the exclusive rights to this product, Sleepy’s has a high markup on the product and it is a series which is a high commission item for the salesperson.

The MySide series 6 sounds like it is the successor to the 600 series. Sleepy’s list price for a queen size 600 series set was $3,299. They would come down to $2,599.00 but retailers outside Sleepy’s market area generally sold the same queen size set for $2,199.


Hi Anonymous,

Thanks for the input from someone who would know :slight_smile:

I appreciate it.


I just found your site today. My wife and I have just begun the mattress search, and based on the first day, I’d rather stick needles into my eyeballs. I noticed in another thread that you could provide a little guidance based on the sizes, etc. of the buyers. How shall I get you this info? Just put it all on here? Thanks.

Hey, found you web site either just in time, or maybe just not in time. My wife and I just purchased, but have not had delivered, a Sleepy’s Series three bed. After reading your comments on the series 6, I decided we will go tomorrow and cancel our order. Hopefully, they will respect that desire.

So, in the Baltimore MD area… any good tips on a location to shop for mattresses. i can’t believe it can be this complicated, but if you can’t believe what you hear, you have to investigate more. Thanks for any assistance.

Hi lydell54,

I certainly hope you are able to cancel your order without penalty. It always amazes me how this mattress can have a listed price as high as it is. The construction of the mattress is listed as …

Mattress Build

.7 Oz. Fire Resistant Fiber
1 Oz. Clima Touch Fiber
2" Quilting Foam
1 3/16" Super Soft Convoluted Cool Wave Foam
1" Kingsfoam Airflow Cushion
3/8" Memory Foam Lumbar Support
Fully Encased 9" Wrapped Coil System
1" Base Foam

This means that it is basically a one sided pocket coil mattress with over 4" of polyfoam in the comfort layers over the innerspring and another 3/8 inch of memory foam to help fill in the lumbar gap. The worst part is that they don’t provide any information about the quality (density) of the foams used and it is a very safe assumption that none of it is the highest quality polyfoam available. I personally wouldn’t consider this mattress even if I was given a 60% or higher discount over the listed prices … especially when there are so many better options available where the polyfoam inside the mattress is known and that are able to be flipped to extend its life. I also would never consider giving my business to an outlet that lists some of their mattresses at more than double what they are worth just to be able to create the impression that a fake “sale” is a good reason to act urgently and buy “now”.

While there are not any factory direct outlets in the Baltimore area that I’m aware of … there are certainly some better choices which are in post #2 here. With a longer drive there are also some factory direct outlets that would take a little longer to get to but would likely save you a great deal of time and frustration (and money) overall … particularly with a few phone calls first to see what they had available which would be suitable for you and your budget.

Hope this helps … and again I hope you are successful in cancelling your order. That’s a lot of money to pay for an innerspring and some polyfoam on a single side.


First off I am not a Sleepys Employee , Or Do i work for any Mattress company …
I am Simply a Consumer, That is going to Share Hi/Her Experience , And Post some of his/Her Views and Opinions On the topic at hand …

First I do not agree with you bashing the Mattress because of whats in it… If you want to compare the mattress to the food you eat, there is nothing but chemicals and artificial ingredients in food, and ita no good for you, and your getting ripped off every time you buy it because its junk …

I myself went to Sleepys, after sleeping on my old mattress for years without a good nights sleep 5 out of the 7 day week…

The 1 sales people who were inside thew store , were extremely courteous and helpful …

  1. They took me over to a bed that was hooked up into a computer where it ran a scan and showed to trouble spots in my back… ( It was 100% dead on accurate) This took about 4 mins.

  2. After the test it came out with a number, which inside their showroom thew match up with mattress accordingly to firmness, support, extc … Mine was 6

  3. The sales-person showed me a variety of mattress’s starting off wth the most expensive, which is by the brand your talking about here, to alot less expensive models …

  4. I was at the store approximately 2 hours laying down on different beds ( the ones my number matched to) To see which one i liked the best. the salesperson even tried to sell me a mattress that was only 700 bucks. I decided to go with a Myside Plush, with a firm core…

It costed me 2k with a new pillow that was 100 bucks, a Mattress protector, and Free shipping…

1.If any reason im not happy with it i can return it within 9 months for a full refund, or store credit t words another mattress.

  1. If after years i find myself not wanting it anymore, or if i decide its not for me, even after say 10 years, I can still return it for some type of store credit.

  2. My mattress has a LIFETIME warranty on it, IF anything happens, from a tear, to a popped stitch, I get a new one free of charge… No questions asked, Whether it was my fault or it wasnt…

  3. I also had the opportunity to talk to a well trained staff, whos knowledge is not just about selling something for their commission, but people who actually care that you receive a good nights sleep.

So in my opinion , I dont care whats in the mattress, Because i had a Sterns and Foster mattress, that was 3k before this one, and i slept like crap on it. I have had this mattress now for 6 months, And i have never slept better.
I am 28 years of age, and i wish i would have went to them, and purchase this mattress 10 years ago…

Just because the stuff they make it with may not be made of gold, dosent mean its not worth the price…

Alot of things go into making the type of mattress i own … Alot of Computers, generating and rendering, and focusing on pressure points, thermal distribution …extc … This technology costs money to, and thats included in the mattress itself…

Plus i dont know of any other mattress store, or any furniture store that runs a computer diagnostics test oin you to show you what style fits you best …

To end my Rant… I think its unfair to say to people to return something , based solely on a review, and a Bias one it seems … Something that may not look like its not worth the price to you, especially a mattress, might be perfect for somebody else, and it might be worth it to them…

I know it was worth it to me… 2k for My, MYSIDE- And its the Best2k i have ever sepnt on a Mattress

Oh and Btw When Buying Latex…

Prepare to Sweat … everybody i know who Owns One, Sweats like a maniac from them … It traps in the heat, and dosent vent it well …

I dont care what anybody here is going to tell you, latex and memory foam, traps in heat and dosent not disperse it well …

Though in the Winter that may be good???
Have fun in the Summer, when you sweat like a maniac…

Figured since we are all truthful here, Might as well give you some more…

Hi lostpunkdc,

My goodness have you ever “bought” a lot of stories :slight_smile: While I recognize that each person has different opinions about many things including mattresses … a great deal of what you posted is just factually wrong regardless of opinion.

It would just take too long to deal with every point you made or even worse about the process that led to your beliefs but there are quite a few that stand out which I will respond to. Unfortunately you appear to know little about mattress materials and construction or the mattress industry and how it works.

This would make you a dream customer of anyone who produced low density polyfoam mattresses which feel great for a while, are overpriced, and break down far too quickly. The only way to know about the quality and durability of a mattress is to know what’s in it. This is why this information is often so difficult to find because most larger manufacturers don’t want you to make comparisons on this basis. They would much rather you believe their pseudo scientific stories that are so widely advertised so that you don’t make real comparisons to other mattresses that use higher quality materials, have the same benefits, and will last much longer.

All sales people tend to be helpful and courteous with a new potential customer. The real question is how knowledgeable they are about materials and mattress construction and where their information came from.

These tests are becoming more accurate than they have been in the past (many of the old versions that were used are now “dumped”) but they still don’t identify all the issues connected with real life sleeping. They also say nothing about the durability of the materials in a mattress. Attaching one number to the overall construction of a mattress doesn’t really help identify the type of comfort zone and support layers that are needed and there are other “flaws” in this type of system as well. They can be helpful but much more information is really needed to make your best choice.

I’m glad you’re happy with your mattress but the truth is you overpaid. You have purchased a commodity with a “pseudo-scientific” story attached for far more than it is worth. In effect … you bought the story rather than the materials and it’s the materials that costs the money. The “science” is available to every manufacturer and is not exclusive to Kingsdown.

The problem with this is that it has to be exchanged for another mattress with equally poor value and there are other costs involved in this. A little research on the web will show you this.

You have “bought” another story that I have talked about extensively on this site. Warranties only cover manufacturing defects which are rare. They don’t cover the “normal softening” or breakdown of the materials within the warranty exclusions. You would do well to read your warranty and find out what it covers … and more importantly what it excludes. Warranties are a sales tool … not a reason to buy a particular mattress or an indicator of the quality or durability of the materials.

All sales people are well trained in the way that a particular outlet wants them to sell mattresses and in the sales techniques they want them to use. These techniques are “feel good” techniques which hopefully leads a customer to believe what they want you to believe or “urgency” techniques that encourage you to make a decision quickly. Training someone well to drive down the wrong side of the road still leads to disaster. It’s what their training is missing which is the biggest issue.

Stearns and Foster is another low value mattress that uses lower quality materials in most of their mattresses. Those that don’t are way overpriced. How well a mattress sleeps has nothing to do with the brand but with the construction of a particular mattress. All brands have mattresses that are suitable for some but completely unsuitable in their construction for others (just like Kingsdown). “Sleeping like crap” on a mattress means you bought the wrong type of mattress … not the “wrong” brand.

That’s true … but a mattress that is made of silver or even straw isn’t worth paying the price of gold either. Mattress ingredients are commodities available to all manufacturers.

This is true … but much of the science is in the materials and part of the price of the materials in the mattress not the mattress itself. There is certainly some very good research into mattress construction … and reading the patent applications can be very informative and revealing … but this research is not so unique to each brand. Even the major brands do some great research aside from the research into material science done by the foam manufacturers. The fact though is that the supply chain and the profit margins along the way has more to do with what you paid than the research. There are really no really meaningful “secrets” in the industry in spite of what most larger manufacturers would have you believe. It’s not so difficult to take apart a mattress and see how its made and the research into materials are available to all.

I think you may be misunderstanding the difference between an analysis and a review. They are very different. While I certainly don’t claim to be unbiased … at least my biases are based on research and fact rather than unsubstantiated stories supported by heavy advertising. Materials have certain qualities regardless of how they may feel. I am a big advocate of getting factual information before buying a mattress … or at the very least buying from someone who knows the facts rather than being trained in the stories that a customer is most likely to believe.

If it was worth it to you then I am happy for you. That doesn’t change the fact though that paying the price of gold for a mattress that contains silver or straw may not be worth it to others. Especially when so many mattresses that use higher quality and more durable materials and have every single benefit of the MySide mattress are so readily available for a much lower cost. Each person has to decide on what “value” is about for themselves. The goal of this site is to educate so that value choices made can be based on fact rather than “unknowns” or worse yet … factually incorrect information.

This isn’t truthful at all … it’s just plain wrong. I suspect that someone told you (or the others you know who own one) were told or believe that a mattress was a latex mattress when in fact it only contained very low amounts of latex and there were other foams on top of the mattress. This is the “norm” when most people buy latex from chain stores or major brands (with few exceptions).

Latex in general is the most breathable of the three types of foam (polyfoam, memory foam and latex). While some people will sleep hot on any type of foam and would do best on mattresses that have no foam at all … for the vast majority latex is the coolest of all sleeping surfaces. A little bit of reading on the internet or on this site will confirm this. Unfortunately … what most people believe is a latex mattress isn’t at all when they are buying from the manufacturers or the outlets that are so called “well trained” but know little about the materials in or the construction of their mattresses.

So thanks for your opinions ,… it’s unfortunate though that they are at best only partly accurate. I sure would like to sell mattresses and be your salesperson though … I could make a fortune if my customers all believed what you do.


Hello Phoenix,


I just stumbled upon this site and am so glad.

About 3 years ago I purchased a Temperpedic Allura bed from Sleepys for $4500.

Well 3 years later I sink into the bed. Needless to say I am not pleased. So i went to Sleepys yesterday and I too got on that silly computer and it also spit out that I am a Myside series 6.

They told me at Sleepys to contact Temperpedic so i did. Temperpedic wants me to take a photo of the sag. Well as you know memory foam always bounces back so lucky for Temperpedic there is nothing that a picture will really show, so I guess I am SOL.

So in an effort to reduce the amount of research and time it takes to find another mattress, what do you recommend as the closest match to the Series 6 without the inflated price and with good materials?

I live in Springfield, MA.

Thanks for your time.

Hi yianni54,

It is almost impossible to exactly “match” one mattress to another when different materials and layers are used. Part of the reason for this is that each different mattress will interact differently with each person so if a different layering system or different materials are used then the feeling will be different.

Having said that … if you match a mattress to your own needs and preferences (as opposed to another mattress) or what I call PPP (Pressure relief, Posture and alignment, and Preferences) then you will likely end up with a mattress that is superior (for you) to the My Side without having to duplicate the materials and specs (which you are trying to avoid anyway).

I think the “best” first step is to find a factory direct outlet or a sleep shop where you can test mattresses which use higher quality materials without having to worry about purchasing “unknown” foam. Some of the better ways to avoid most of the traps and pitfalls of mattress shopping are here.

Some of the better outlets that are near you are in post #4 here.

Unfortunately … most warranties are only there to help with manufacturing defects not with the softening of foam itself. Since the softening of foam is not considered a defect (unless it actually goes beyond the stage of softening and enters the final stage of breakdown where it starts to completely lose it’s integrity and resilience and develops deeper impressions without any weight on the mattress) … warranties have little value in terms of how long a mattress will really last in terms of being suitable for an individual to sleep on comfortably. Knowing the characteristics of different materials and the potential “weakest link” of a mattress can be far more predictive of how long a mattress may last in actual use than any warranty.


I came to this site to see informative reviews on Mattresses I would potentially purchase.
Forgive me if I seem uninformed but the main poster in this thread speaks of the materials
In this my side mattress as if they have intimate knowledge of their makeup. In an
Effort to be more informed please tell us how you know the makeup of these materials
Such as kingsfoam. Kingsfoam sounds like a kingsdown product. If it is not once again
Excuse my lack of knowledge, but did you buy a mattress that has kingsfoam in it and
Take it to a lab to determine its quality of poly foam? You say the only quality poly foam
In the mattress appears to be the qualatex. Qualatex seems to be a know poly foam so
If it isn’t labeled with a known name tag should we immediately dismiss it as poor quality?
Phoenix just comes across as someone very dead set against the known store, enough so
To simply label the materials in a mattress they sell and based upon much assumption
Deem them trash. I just bought a series 6 my side today and I wanted to learn more about
People’s experiences with the product but this appears to be a bash fest.
Btw kingsdown stands behind their product so if there is breakdown during the
Life of the mattress they will replace free of charge if more than 1.5 inches.

Hi Rickyb,

I can understand your frustration and even anger. If I had just bought a Myside mattress and then came to this site and discovered this kind of information about what I had bought I would probably feel similar … although I would probably read a little more and find out why I am saying what I say on this site and the research and sources that the information here is based on.

I’m not sure if I would call what I know “intimate” but I certainly am familiar with the general types of foam and other materials that are used in mattresses in North America. All of the mattress manufacturers (including Kingsdown) buy their foam from the same sources and then put their own proprietary names on it. There are only 3 main types of foam used in a mattress (polyfoam, memory foam, and latex), and each has it’s own properties and range of qualities. There is a great deal of information available about the different foams that are used in mattresses and you don’t need your own lab when the testing has already been done. If you go to the mattresses section of the site you will find a lot more information (if you want to read a little) about mattress materials and construction and how to fit a mattress to different weights, body shapes, sleeping positions, and preferences.

As I say on the front page of the site … I certainly have my opinions but they are based in fact and hundreds of hours of ongoing research into different types of foam and materials and hundreds of hours more of talking to mattress manufacturers who are very familiar with the materials that are used in the mattresses they and other manufacturers make. There’s no secret to knowing the general types of foam that different manufacturers use and how you can expect them to perform.

Your comments are very similar to some thoughts expressed in post #14 in this thread both in tone and content and I think my reply in post #16 may be worth reading as my comments to you would be similar.

If you are happy buying a mattress that uses lower quality or unknown polyfoam and you feel no need to know any more about what is in your mattress or even anything about higher quality mattresses that use better materials and cost less … then that is of course up to you. I know though that there are many others who do want to know how to make more meaningful comparisons in terms of quality and value. This site is more about consumer education and helping people to make meaningful comparisons and beter choices rather than just another review site which are common all over the internet but don’t say much at all about the quality of a specific mattress or it’s suitability for anyone but the reviewer.

There are more and more people however that really do want to know and there are very few places where they can find out accurate and factual information. The only way to really know the quality of anything including mattresses is to know what goes into it and how it is made. Hopefully the days of “blind” mattress purchases are coming to a close and more and more people will discover the quality and value that is available through local manufacturing or smaller brands that sell factory direct or through better sleep shops that are more focused on materials than the name on a tag on a mattress.

Again I appreciate your opinions … but unfortunately they have little fact or substance behind them. If anything they only highlight the need to help more people find better quality and value by focusing more on what is in their mattress.