http://en.wikipedia.org/wiki/Mattress From the page above: "Spring mattress core The core of the mattress supports the sleeper’s body. Modern spring mattress cores, often called "innersprings," are made up of steel coil springs, or "coils." The gauge of the coils is another factor which determines firmness and support. Coils are measured in quarter increments. The lower the number, the thicker the spring. In general, higher-quality mattress coils have a 14-gauge (1.63 mm) diameter. Coils of 14 to 15.5-gauge (1.63 to 1.37 mm) give more easily under pressure, while a 12.5-gauge (1.94 mm) coil, the thickest typically available, feels quite firm. Connections between the coils help the mattress retain its shape. Most coils are connected by interconnecting wires; encased coils are not connected, but the fabric encasement helps preserve the mattress shape. Here are five types of mattress coils:
Bonell springs are hour-glass shaped, which means their resistance increases with load. They are therefore best suited for firm mattresses. [my emphasis] Pocket springs provide support along the entire length of the body. This design works to maintain natural spinal alignment throughout the night. |
Thanks for the link, I just read it all and then clicked on the links and read some more. This you might find interesting http://www.epinions.com/content_2589958276 it is posted by a mattress developer in 2002 (still relevant) that gives some insight to coils and which ones help/hurt a back, and why you back needs some cushion to fill up the small of your back to prevent lower back pain. Be sure to look at the links page on consumersearch.com. Also after reading what consumerreports.org reviews are based on is pretty lame. They only tested the mattress for a month. Now we all know that the mattresses take a few more months for the foam to break down and those indentations to form (though memory foam does not show the holes, but you feel the breaking down of the foam). So they also don't make recommendations. Lots of good reading material for a sleepless night to make you fall asleep, LOL. |
That is kind of how I thought it happened. One followed another into this mess... As cynical as I am about the Big S companies, I still have to ask: Is it possible that they were in a way economically "driven to using cheaper materials" in order to keep the price low enough for the average consumer to be able to buy a "great" bed? Perhaps they figured that since it was starting to cost $2000 to make a great bed, they started looking for a way to make them cheaper? And in so doing, they also of course had to make them last less time... Seems to me that the mistake they made was in not continuing to make great beds at $2k and $3k, so they had something to "sell up" to. And perhaps if they had marketed those higher priced beds, each company could have had at least one truly good bed in their line? But then, if they couldn't sell enough of those beds at that price, they would have to make less of them which would not achieve a proper "economy of scale".... so they let that end of things go... Or am I giving the *&%~|\'s way too much credit? |
"Fascinating..."
no, I think I certain degree of understanding is required. the problem is, every time they made changes they marketed them as being good for the consumer. well once they started getting rid of cotton batting in favour of foams, then the only way to still sell a bed at 2 or 3 thousand (which they do offer in some cases) is to put more foam in it, which ironically makes for an even poorer mattress design. i really don't wanna shift the blame where it doesn't truly belong, but consumers did keep on buying them right? Its kinda like using your wallet to speak for you and say 'yeah I want a big thick pillowtop bed that looks like its worth 2 grand instead of a bed thats actually worth 2 grand'. And of course we have uneducated sales people (or misleading ones depending on how much they really know) that tell people these beds will still easily last 10 plus years. The other ironic thing with it all....especially with the really thick beds, there has to be a point where the innerspring itself would make virtually no difference in how you sleep because you could have 6" or more foam inbetween the sleeper and the spring system, at which point its basically like sleeping on an all poly foam mattress. |
Budgy, you make a good point about what a mattress should cost now adjusted for inflation. If they use to charge $1000 20-30 years ago for a quality mattress, it probably should be at least $2,500- $3,000 now. I can't remember what I paid for a Sealy Posterpedic 22 years ago, but I think it was around $700-800. It was definitely constructed better (and heavier) than the stuff they put out today. It didn't have much in the way of wool or cotton padding though, so I assume a better more comfortable one back then would have cost even more. It seems like you have to buy from a smaller brand now to get a quality product and avoid the junky foams. The mattress industry seems to have gone the way of some other industries like the airlines. They are in constant competition to reduce costs and show cheap prices. As a result, they have degraded their "product" over time. Consumers contribute to this some what, because they will generally take the airline that has the cheapest cost, even if their service is worse. However, one can put up with a few uncomfortable hours on plane, but having 8 hours of misery every night it a totally different matter. Will consumers wake up and start demanding a better product (by not buying the junk)? Maybe most are getting by okay, and don't want to spend the extra money. However, if they have to replace the mattress more frequently, they are not really saving money. A friend of mine might be in the market for an innerspring. I told him about the Royal-pedic, and he seems interested in that. Are there any other brands that you recommend in the U.S. that are "reasonably" priced? |
I do blame the manufacturers mostly because of their greed and poor management, they no longer cared about good products or warranties, or even return customers. Yes consumers kept buying them, I think they kept trying different brands thinking this brand has to be better. I never fell into the trap of big pillowtops, but it was increasingly difficult to find any decent mattresses at all. Okay I fell for the gimmick of Sealy Truform, I confess. If it sounds too good to be true it is. But I never tried anymore memory foam and foam mattress combinations. Nor would I put latex over foam. Okay I turned the Sealy Truform over and put latex toppers over that; it didn't work! The foam broke down, never ever will I use regular foam again as a base. The internet has helped consumers GREATLY because reviews are out there now for all to see. They can't hide their poor products anymore, but now it is too late. Selection is bad because companies are closing doors. Smaller companies may prevail in this economy, time will tell. This message was modified Jan 31, 2010 by Leo3
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in the coil mattress segment...nope. they seem to be the best overall value for the money from what I have seen. |
I have to say after further research I found Simmons filed chapter 11, and than I find an article they have new mattress line. I read they have kept changing hands over the years. I have read that about Spring Air too. So are their any mattress S companies that have not filed chapter 7 or 11 or whatever? Are any of them really the original owners? I doubt that. Why does this never make the news? I have stopped watching the news because it really isn't news. This message was modified Jan 31, 2010 by Leo3
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http://www.beddingcomponents.com/innersprings.asp This is from Leggett and Platt website. Now can someone tell me which mattresses use what components? On the right hand column you can download the .pdf on bonnell and Marshall coil. I am STILL trying to find out what my Spring Air from 15 years ago has. I think Bonnell obviously, but those are the firmest from what I understand. I am not even sure if the bed manufacturers still are using these. Who knows? |
a 312 bonnell coil from leggett and platt is used by probably over a hundred small manufacturers in north america |
Thanks Budgy, so are you saying Spring Air USE to use Bonnell coils? I guess it doesn't matter, but I am so darn curious now. What was common for the S manufacturers 15 years ago? I believe Simmons used the wrapped coils, Marshal coils I believe. But then I see it could be hinged springs. Do you know what they used back then? You are probably too young LOL, to know. |