How to Fix a Sagging King Size Mattress

Beverly Bright
No matter how good or expensive a king size mattress you purchase....it will sag. I went to a lot of effort to fix the sagging problem and some expense to cover the sagging up, and then I discovered a simple solution!

In need of a new mattress

When our king-size mattress was about 15 years old it was apparent we needed a new mattress. The old one had begun to sag terribly in the middle and we were sleeping back-to-back or "spoon style", which was not all that bad.....but we needed a new mattress. After a period of searching we decided on a mattress and purchased it, had it delivered and it was good.

New sagging

In less than two years this new mattress begun to sag, only this time it was on each side where we lay. We had turned it and flipped it each quarter as we were told to do, but it had begun to sag. We called the store where we purchased the mattress and they informed us we had to contact the manufacturer direct. We did and were mailed a form to fill out, describing where the sags were and to what depth. At one point the mattress sagged about 3 inches; we qualified for the mattress to be rebuilt by the factory.

Without a mattress!

At the appointed day, the van came to pick up our sagging king mattress and the pick-up men informed us we would be without a mattress for two to three weeks! Thankfully, we had some twin mattresses to use in the absence.

It came back

The rebuilt mattress was delivered and we expected all problems to be solved. It looked good; it felt good for a few months, then it begun to sag again. At this point we were disgusted! I purchased a feather "topper" for the bed and by turning and fluffing the "topper" the sag was not as noticeable to us. We also added a sheet of one-half inch plywood over the box springs.

A poll

I started my own poll. I asked everyone I knew if they had a king bed and if so, did it sag? The over-whelming response was yes - if it was a king, it sagged. I was startled by the responses! I also discovered the men did not notice nor cared about the sagging as the women did.

The simple solution!

Not wanting to pay the price for another sagging king mattress, I started researching the manufacturing facilities. While on line searching one day, I found a blog by a man who said he had been in the mattress industry for years. He stated that all king mattresses sag and for a simple solution, just rotate the mattress one quarter turn every 30 days. It worked! For the first two nights there was a slight hump in the middle, but after that it was flat! The fitted sheet rotates with the mattress and the top covers remain the same. It is not a problem and my husband says his feet do not hang off the end. If you have a king bed that sags.....there's the answer.

This action is such a simple and no-cost remedy for a sagging king-size bed that I want to tell everyone about it! People look at me funny and may think, "Crazy old woman", but I would rather spend my $1,000 somewhere else. How about you?

Published by Beverly Bright

Beverly worked in Architectural drafting/design for 40 years (industrial/commercial) and owned her own business for 17 years. Retired, loving life in the country! Beverly enjoys learning, research, and has...  View profile

17 Comments

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  • Beverly Bright3/1/2010

    PH, I don't flip our mattress but maybe twice a year. The 45 degree (or 1/4 turn)rotation will fix the problem!

  • PH2/28/2010

    Our king is sagging as well but it is one that can not be flipped so we only do the rotation from changing sides basically........

    I'll have to try this and see if it helps but right now my back is begging for me to try anything..........everything to gain and nothing to loose.....

  • Laura ONeill11/11/2009

    What do you mean by quarter turn?

  • Beverly Bright9/22/2009

    Jeff, that sounds like an interesting concept. Thank you for your post. Thank ALL of you for your posts. Restful sleeping..........

  • Jeff9/22/2009

    Contour Living has a very simple solution called the Mattress Remedy. It's an air bladder that sits between the top mattress and boxspring. You pump it up with air to the desired level of support - the shape allows the sagging potion to virtually be eliminated. They advertise it as a "60 sagging cure to sagging mattresses, plus it only costs $30-40 depending on size of bed. http://www.contourliving.com/p-47-contour-mattress-remedy.aspx

  • Robin Hyde6/25/2009

    I am so glad I found you post. My husband and I were going out mattress shopping this afternoon because we have a king mattress that sags so badly on his side he has had to move to the guest room twin bed. After coming on line to find out which mattresses don't sag, I found complaints about every brand. Then I came across your post. I turned the mattress (don't know why I never thought of it) and am going to hold off on buying a new mattress that will inevitably sag and keep my money. Thank you so much.

  • SDMattress.com4/15/2009

    Hi,

    Thank you for your reply! That's great to hear! You might like to know that I have been doing the same thing with my bed and recommend this technique to all of my king size customers. It just makes so much sense to the point that I believe they ought to start making King Sizes 80"x80" to promote this practice. Good for you! I will reference your article on our "Ask the Expert" column at www.SDMattress.com.

    Kind Regards,
    Greg Law
    Sweet Dreams Mattress, Inc.
    www.SDMattress.com
    1-866-799-0048

  • Sadie Kay4/15/2009

    This strategy has worked for more that a year. The 4" difference is no problem. The mattress is just as good as new with no sagging. I still turn 90 degrees every month. It really works! Regards,

  • SDMattress.com3/17/2009

    I love your advice here! Is this strategy still working for you a year later? I have been in the mattress industry for year's too and had not recommended quarter turns because the dimensions are not perfectly square (76" x 80"). I do know that it makes sense to break in the mattress as evenly as possible and use strong supports! If you're still participating here, I'd love to hear how it's doing.

  • Alban Mehling ;-}}>4/23/2008

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