Problems with new Sealy Memory Foam Mattress and moisture condensation underneath
May 9, 2011 12:38 PM
Joined: May 9, 2011
Points: 19
I am at a loss. Our brand new mattress that we have had since April 22 is exhibiting a damp, moisture problem on the underside of the memory foam mattress and the top of support. Not only that but there are two small rust-like or maybe mildew like stains on both the underside of the mattress and the top of the support. I called Sealy and they could not help me saying they had never heard of this problem. I called the place of purchase and he said he had never heard of this problem either and that we should try airing the mattress out near a window (we are in an apartment). I have no idea why there is moisture condensation under the mattress if the first place. What good will it do to air it out, if it happens again? Has anyone had this problem, or know of what to do? Thank you for your time.
Re: Problems with new Sealy Memory Foam Mattress and moisture condensation underneath
Reply #5 May 10, 2011 3:22 PM
Location: L.A. area
Joined: Jan 18, 2008
Points: 1161
First of all, do you know that ANY stain will void your mattress warranty? That is why you should always use a breatheable mattress protector at least until you decide to keep it. I laugh at this because people spend thousands on a mattress in part because they love the beautiful ticking and quality mattress materials... and then they have to put an ugly synthetic mattress protector on it to protect their warranty!

Even a small - tiny - stain will void the warranty. Of course they may still decide to honor it especially on a new mattress and especially if you threaten to make some noise at the Better Business Bureau, Federal Trade Commission and post all over the internet about their company if they don't help you take care of this problem.

So make noise and do not accept "no" for an answer.

Meanwhile document your problems in writing and with photos. Send Sealy a certified letter they have to sign for. Find out who the Sealy rep is for your area and send him or her a certified letter with photos and make it clear you will not take no for an answer, that you want satisfaction for your problem.

If your mattress vendor has an exchange policy you may have to use it. Many of them are now charging 20% or more in restocking fees plus delivery fees so it may legally cost you some money to exchange or return it. However, push them for free exchange if it is defective. The key: Make noise. No one wants bad BBB rating and bad publicity.

Re: Problems with new Sealy Memory Foam Mattress and moisture condensation underneath
Reply #6 May 22, 2011 11:25 AM
Joined: May 22, 2011
Points: 2
We are having this identical problem.  I don't believe it is a "sweating problem."  Nothing else is the least bit damp.  I believe the foam is heating up and causing condensation between the mattress and foundation support.  I also feel the foundation support does not allow enough ventilation and perhaps is not suitable to the mattress for which it is intended, but good luck getting Sealy to admit or recognize this.  The reps I spoke to and retail store where we purchased the mattress all think we're crazy, "never heard of this," they say.  We're now battling mildew and will probably just purchase another mattress when we can't stand it anymore.  Lesson learned.
Re: Problems with new Sealy Memory Foam Mattress and moisture condensation underneath
Reply #7 May 22, 2011 3:51 PM
Joined: Jun 16, 2010
Points: 5
Metoo is correct about the source of the problem. Condensation can form on the bottom of the mattress when your hot body is on a foam mattress in a cold room.  This typically happens on a plywood surface  where the heat can't dissipate. Innerspring mattresses don't have this problem because heat can dissipate. I have never heard of condensation happening on a box spring because box springs have good breathability.

I would suggest making your room warmer and/or checking the breathability of your box springs.

 

Re: Problems with new Sealy Memory Foam Mattress and moisture condensation underneath
Reply #8 May 22, 2011 7:46 PM
Joined: May 22, 2011
Points: 2
MattressDan:  The "box spring" is the foundation Sealy sells with this memory foam mattress.  It, therefore, I would assume be compatible with the mattress; obviously, however, it is not.  In fact,  the label attached to the mattress indicates to either use no foundation or only the foundation sold with the mattress, else warranty is void.  As far as warming up the room, it sounds like a good idea, but this memory foam mattress already makes us feel like we're in an incubator.  I couldn't imagine the room being any warmer.  I really think the answer is with the foundation.  Sealy needs to make a product that will allow this mattress to breath.  If only, they would acknowledge the problem.
Re: Problems with new Sealy Memory Foam Mattress and moisture condensation underneath
Reply #9 Jun 5, 2011 1:41 PM
Joined: Jun 5, 2011
Points: 1
just moved my sealy memory foam ... exactly same issue as what was described by OP.  Mattress is 11 months old, but only been slept on first 6 months.  Mold is spotty, only between bottom of mattress and top of box spring.  There has to be a cause for this, nothing else in the room, apartment, etc. is exhibiting this problem.

 

any help in cleaning/removing the mold would be appreciated.

 

thanks.

Re: Problems with new Sealy Memory Foam Mattress and moisture condensation underneath
Reply #10 Jun 5, 2011 2:11 PM
Joined: Apr 15, 2011
Points: 163
johnohio wrote:

just moved my sealy memory foam ... exactly same issue as what was described by OP.  Mattress is 11 months old, but only been slept on first 6 months.  Mold is spotty, only between bottom of mattress and top of box spring.  There has to be a cause for this, nothing else in the room, apartment, etc. is exhibiting this problem.

 

any help in cleaning/removing the mold would be appreciated.

 

thanks.


Dr. Gloom here. The bad news is mold is very difficult to remove. Actually, impossible. You can try to kill it back with various mold treatment solutions, but they are not 100% effective. Bear in mind any kind of moisture you add to clean it out with will provide a breeding ground for future growth. Generally, what people consider "removing" mold is just cleaning the surface spores off. They form kind of network or tentacle type growth patterns that move deep into the underlying surface, and those remain, where the absorbed moisture from the cleaning solution spurs further growth. This is what happens when people use bleach spray, for example, thinking they are killing the mold. They are killing surface spores, but providing addiional breeding media for the growth underneath, and it will come back.

The best you can do, honestly speaking - and yes, I have studied mold professionally a bit - is to cut out the affected area, and considerably more extensively around that area, because there is more in the areas where you don't see it appearing on the surface. The experts I was trained by said, for example, if you have mold on a patch of wood about 1 foot square, you need to remove a one-yard section around it to eradicate most all of the tentacles. Then patch in a replacement of clean material.

Also be aware that mold is a toxin - some more virulent forms than others. It needs to be treated carefully, possibly wearing breathing masks and definitely gloves, and discarded in a sealed bag, if you want to be sure of avoiding any effects. Some people (and other animals) are more sensitive than others, of course. The trouble is, when you work around mold, the spores disperse into the air surround. So it would be best to do the surgery outdoors - out of your bedroom, definitely.

 

Re: Problems with new Sealy Memory Foam Mattress and moisture condensation underneath
Reply #11 Jun 5, 2011 2:35 PM
Joined: Apr 15, 2011
Points: 163
A bit more about mold....

Mold spores are everywhere. They are microscopic and virtually deathless. They can survive in spore form for many years until they land on a suitable surface and sprout.

They are part of life on this planet, and their job is to digest matter and return it to the biosphere.

But when I say organic - it's very broad. It includes virtually anthing with any kind of carbon in it - which is just about everything there is, including drywall, concrete, paint - virtually anything. But they really like organic materials which I gather are tastier and easier to digest.

The conditions they thrive in are: dark and moist.

So anytime you have anything that sits in a moist and dark condition, mold is likely to grow.

The proliferation of mold in residential settings is a huge problem, particularly given modern building materials and building methods, which tend to trap moisture indoors. Once it is detected, it cannot really be removed without stripping out the affected materials, and that gets expensive in a hurry.

That's why most homeowner's policies now include a mold exclusion, and if the policy was issued prior to the mold exclusion, the insurers run screaming from the room.

Ed McMahon had a $5 million mold claim on one of his McMansions a few years ago and won it. He argued that the mold made him sick and even killed his dog.

No one is immune from mold. All we can do is try to keep things dry and let the sunshine on them now and then. It wouldn't be a bad idea to put your mattress and platform in the sun and try to make sire they are thoroughly dry through and through.

Re: Problems with new Sealy Memory Foam Mattress and moisture condensation underneath
Reply #12 Jun 5, 2011 2:58 PM
Joined: Jun 1, 2011
Points: 17
johnohio wrote:

just moved my sealy memory foam ... exactly same issue as what was described by OP.  Mattress is 11 months old, but only been slept on first 6 months.  Mold is spotty, only between bottom of mattress and top of box spring.  There has to be a cause for this, nothing else in the room, apartment, etc. is exhibiting this problem.

 

 

any help in cleaning/removing the mold would be appreciated.

 

thanks.

Just wondering - were you using a mattress protector?  I just bought a memory foam bed, and want to do whatever I can to prevent this.
 

Re: Problems with new Sealy Memory Foam Mattress and moisture condensation underneath
Reply #13 Jun 5, 2011 5:35 PM
Location: San Francisco Bay Area
Joined: May 13, 2011
Points: 170
I forked out $200 for a wool moisture barrier for my new latex mattress.  From what I've read, wool repels moisture.  I sometimes wake up at night sweating, so I hope the wool will help with heat transfer as well as moisture.  Heat is more of an issue with memory foam than latex foam because you sink into memory foam.
Re: Problems with new Sealy Memory Foam Mattress and moisture condensation underneath
Reply #14 Jun 5, 2011 6:21 PM
Joined: Apr 15, 2011
Points: 163
sleepswithcats wrote:

I forked out $200 for a wool moisture barrier for my new latex mattress.  From what I've read, wool repels moisture.  I sometimes wake up at night sweating, so I hope the wool will help with heat transfer as well as moisture.  Heat is more of an issue with memory foam than latex foam because you sink into memory foam.


Slight correction - Wool actually absorbs moisture but it doesn't get "wet" as quickly. In fact, it can hold up to 30% of its weight in moisture. The way it works on a mattress cover is it wicks up the moisture and holds it so it can evaporate from the loft of those fibers instead of seeping through into the underlying material. That's part of the beauty of wool. It is more resilient than, say cotton, which absorbs a lot, but loses its resiliency, and lets the rest of the moisture pass on right through. Cotton tends to pack down more than wool fibers do when it gets wet. But both natural fibers are breathable and allow air into them so evaporation can take place. The thing about synthetics is that they don't "breathe" so if moisture gets into them, it runs right through, if it's porous, or runs off if it's not. If moisture gets trapped inside a synthetic casing or barrier, there is no escape. That's why air mattresses also have a problem with mold growing inside. In something dense like latex, there is no opportunity for airflow to get in there and assist with evaporation. If it's a memory foam or sleeps "hot", then naturally there will be more moisture from perspriration being absorbed into the open cells of the foam that make it "give." So that is why it's a very good idea to have a breathable layer on top  that can absorb moisture before it gets into the foam. The natural action of air flow through moisture in wool can provide a cooling effect on the skin through evaporation. Natural fiber sheets help, but they're usually too thin to do much in the way of moisture absorbtion and evaporation.

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