ZINUS 12 Inch Support Plus Pocket Spring Hybrid Mattress / Extra Firm Feel / Heavier Coils for Durable Support / Pocket

(10 customer reviews)


Product details

Size King
Item Firmness Description Extra Firm
Brand Zinus
Product Dimensions 80″L x 76″W x 12″Th
Top Style Pillow Top
Color White/Grey
  • Comfort and High Density Foams With Heavy Gauge Pocket Springs
  • General Note: Please allow 24 – 72 hours for your Mattress to regain its full shape. Any memory foam will expand faster in a warmer room. In cold temperature, at delivery, your mattress may take a bit longer to return to full sized from its compressed state.The expansion time of the mattress will vary as per the surrounding
  • FIRM SUPPORT, PLUS MORE – Our firmest mattress ever is engineered with heavier gauge steel independent pocket innersprings for added stability and extra firmness, ideal for stomach sleepers and plus-sized individuals
  • SUPPORTIVE FOAM & POCKET SPRINGS – Soft comfort foam, durable high-density foam and motion-isolating independent pocket springs with a quilted jacquard cover offer a firm feel that’s perfect for stomach sleepers and those who enjoy a very firm mattress
  • CERTIPUR US CERTIFIED – Highest quality foam is CertiPUR-US Certified for durability, performance, and content
  • EXPERTLY PACKAGED – Our technology allows this mattress to be efficiently compressed into one box that’s easily shipped and maneuvered into the bedroom; simply unbox, unroll and this mattress does the rest, expanding to its original shape within 72 hours
  • Worry-free 10 year limited warranty included; twin mattress supports a maximum weight of 250 lbs, while all other sizes can support up to 500 lbs
  • It takes 48 hours to actually get to its size that it is


How much support you need from your mattress is probably just as subjective as how you like your eggs cooked! For those who find comfort in a firm bed with a soft quilted top microfiber cover, we developed our Support Plus Extra Firm Hybrid Mattress. Densely packed with firmer pocketed springs than our other mattresses, it provides extra support and rigidity, making it ideally suited for stomach sleepers, plus-sized individuals, and firm mattress lovers of course! Not only do our revolutionary independent pocket springs hug your every curve for pressure-relief, but they also work to keep motion from a sleeping partner away from your side of the bed. Cozy, Certi-PUR US certified foams complete the top layer for the right touch of softness. And yes, even this ultra-firm bed is expertly compressed and packed into a box, so setup is worry-free, much like the 10 year warranty you get with your purchase! Fortunately for you, unlike the challenges involved in perfecting your eggs, we’ve perfected our mattress technology – so all you need to do is lay on this one to enjoy its many benefits.

From the brand

From the manufacturer

Support Plus Pocket Spring Hybrid Mattress
Expertly crafted

Refreshing comfort

Looking for comfort in a firm mattress? Look no further than the densely packed pocket springs and layers of comfy foam in the Support Plus Pocket Spring Hybrid mattress.

Innovative layers

Support Plus Pocket Spring Hybrid Mattress Coils

More coils, more comfort

Made stronger than your average mattress, this model features 10% more coils to prevent sagging or bowing that can happen over time. With a signature reactive and bouncy feel, it’s ideal for firm-mattress lovers, stomach sleepers and plus-sized individuals.

Support Plus Pocket Spring Hybrid Mattress

Supportive Foams

A quilted euro top and multiple supportive foam layers add the perfect hint of softness to effortlessly hug your shape.

Support Plus Pocket 14" Mattress Layers

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Skillfully packed

Shipped to your door

This mattress is expertly compressed and rolled into a compact box that arrives at your doorstep. Simply unbox, unroll, and watch your mattress expand to its original shape within 72 hours.

Additional information

Weight 108.8 lbs
Dimensions 80 × 76 × 12 in
Product Dimensions

80 x 76 x 12 inches

Item Weight

108.8 pounds



Country of Origin


Item model number


Item Thickness

12 Inches

Fabric Type

Comfort and High Density Foams With Heavy Gauge Pocket Springs

Assembly Required


Batteries Required




10 reviews for ZINUS 12 Inch Support Plus Pocket Spring Hybrid Mattress / Extra Firm Feel / Heavier Coils for Durable Support / Pocket

  1. Walace

    I love Amazon and I love this mattressI have purchased mattress before I received this incredible beautiful wonderful mattress the last one I had it was horrible I’m a very big guy and have a back problems the other mattress I have purchased before it was horrible it has no support it was just like a big sponge my body was aching in a lot of pain for using the other mattress but once I have received this mattress it was incredible in a couple of days my body start feeling better my back was feeling good along with my body it’s a very firm good mattress I like to thank the seller for this incredible amazing mattress if you are a big person and you’re very happy like the way I am and you got back problems pains in your body this is the mattress for you I give 1 million stars for this incredible mattress and it has a great price for such a good mattress I wish I would have purchased this mattress first before I purchased the other sponge mattress I sleep good now I sleep into my size and I have no problem moving left or right when I sleep and it’s extremely comfortable this mattress is the greatest the best and such an incredible mattress for an excellent good price

  2. Brandon

    Excellent mattress for the priceI have bad back problems and neuropathy this mattress is great for my back it allows me to sleep up to six hours . It is firm but that is what you want for bad backs it is not hot like my other beds (memory foam tops built in ) I would recommend this bed at this price point to anyone that has back problems I hope it last but at this prices I would buy another in 5 Years if it wears out. If your debating and your hot and back hurts give this a try if it’s to stiff for you try a topper. I don’t write many reviews but I had to share.

  3. Jan H.

    It’s only been four nights but WOW! Review September 2017 with follow up April 2021 at the end.Eighteen months ago due to severe spinal stenosis I gave up my once awesome but currently sagging 20 year old beauty rest mattress in favor of sleeping directly on my board like box springs with a mattress topper. For a while it helped but at 68 years old I finally realized I needed at least a little bit of cushion or give. After reviewing pretty much every mattress on the planet for the last six months I decided on an inexpensive bed in a box type of mattress. I didn’t want to spend a lot in case it didn’t work out. I have had coil spring mattresses for over 60 years so I decided to stick with that familiar feel. However, I definitely needed the firmest mattress I could find… a step above the wooden board I had been sleeping on. Last Monday, July 28th I ordered the Zinus performance plus extra firm 10 inch queen mattress. I received it three days later on Thursday shipped from Amazon. It came in a long box about 90 pounds. I maneuvered it from the porch on its end all the way to my bedroom. Not too bad for a 68 year old woman with a bad back! I set it on the bed and unpacked it with no problem. I slowly cut the wrapper off as instructed and the mattress immediately started inflating and expanding. The smell was very mild and reminded me of dried hay. 10 hours later when I went to bed the smell was completely gone. Before I made up the bed I laid on the mattress for a few minutes to test the firmness. It is very firm but with that tiny bit of give that you get from a spring mattress. Since the 10 inch style has very little padding on top of the springs I decided to use my 3 inch Novafirm gel memory foam topper from Costco. If I was a little younger and not so sore I probably wouldn’t need it. I also have a very nice bamboo made in the USA mattress pad that I’m using on top of that. Now the results. These last four nights I feel like I died and went to heaven! I have not slept this well in over two years. I feel like I am sleeping in a $2000 bed! I am not waking up six or seven times a night and it is sooo comfortable. Can’t tell you how grateful I am to have found this bed and at such a good price. I was so apprehensive about this purchase and am so relieved and happy about the results! I know this was a very long review but I wanted all of you out there to have enough information in one review to help you make a decision. Also you already know my age but I am 5 foot four and 168 pounds if that helps. Also if you buy the bed directly from Amazon it comes a bit faster. Amazon prime got it to me in 3 days but I had to pay $20 tax. If you order it from Amazon and pick vendor Sleep Revolution( which is like the store front of Zinus) to order it from it takes about 7 to14 days and you don’t pay tax. But I wanted it really fast. I just want to end this review with a huge thank you to Zinus for making a product that has so vastly improved the quality of my life!!………………. Today is April 21, 2021 and it has been about 3 1/2 years since I bought this wonderful mattress. A lot of times you will see a review for a product and then never hear from that consumer again. But I love this bed so much I felt I should offer a follow up. First of all this mattress is in exactly the same shape as when it was new. I can detect no wear of any kind or any sagging. I am now 72 years old and still have my back issues but I have never slept so well in any other bed that I have owned. I still can’t believe that I paid less than $250 for a “bed in a box” coil spring mattress of this quality. I own the 10 inch mattress and as I stated I at first used a 3 inch memory foam topper but I ended up getting rid of it because foam is just too hot for me. Besides the top of this bed is soft enough even though the mattress is super firm and I use a bamboo USA made plush mattress pad cover which is perfect. This combination allows the mattress to breathe and the whole sleeping experience is cool and comfortable rather than hot and suffocating. I think the problem with foam is your body heat does not dissipate very well and I am a very hot sleeper. So in closing I will just say this. This mattress is worth every penny. If you are looking for a very firm bed that is really comfortable and sleeps cool look no further. I hope this follow up review is helpful.

  4. @leighttweets

    Excellent Firm Mattress- Good Price, High Quality- Worth the ExpenseShort version: My wife and I have had this mattress for over a year now and can say with confidence that it was an excellent purchase- it is still firm and has no sags or dips. I highly recommend it.I have held off on writing a review for this mattress because I felt it was necessary to sleep on it for an extended period of time to give it the most fair and accurate review. My wife and I purchased this mattress over a year ago, in November 2017.After going to all the local stores, from big box to mom and pop, my wife and I found ourselves with a problem: we could tell which mattresses were soft and which were firm, but aside from that we didn’t really feel much difference apart from the price tag- almost all of which exceeded a thousand dollars, with some approaching two grand. That’s quite an outlay of cash.So, going off reviews on Amazon we took the leap on this Zinus Extra Firm iCoil 12 inch king mattress. We also purchased a steel foundation upon which to set the mattress in our bed frame. The box arrived a little beat up, but my wife and I muscled it into the house and carried it upstairs together. It’s a two person job, but not impossible. We set the rolled up mattress on our guest bed and carefully cut away the plastic so the bed would unroll. (Pro tip: Don’t stand between the mattress and the wall. You might get pinched) We followed the directions and let the mattress sit undisturbed for 2 or 3 days so it could fully expand. After which time, we moved it into our bedroom.It’s now more than one year on and I feel qualified to report on the mattress. It is firm, but not rock hard. This is obviously subjective, so all I can say is that you know a firm mattress when you lay on one, and this is a firm mattress but is still comfortable. I’m a side and stomach sleeper, and my wife is a back sleeper. I’m 5’11”, 230lbs, and we’ll just say that my wife is plus sized and leave it at that. The mattress supports both of us fine, and a year later has no depressions, dips, sags or problem areas. The last time I did laundry I snapped some photos of the mattress which I have posted above. You’ll notice the mattress is still even and flat, even after a year of nightly use.I purchased this mattress myself, with my own money, have no relationship with the manufacturer, and am receiving nothing in return for writing this review. I just know how difficult it is take the leap of purchasing something like this over the internet, so I thought I’d write a review to help people in a similar situation my wife and I found ourselves in last year.This mattress was an excellent purchase, I’ve recommended it to friends, and if you’re in the market for a fairly priced firm mattress, I can recommend it to you as well. Cheers.

  5. Saundra

    Okay butI replaced a more expensive mattress that was only 3 years old because it was starting to sag and apparently I began sleeping on stomach which created hip/lower back pain. The Zinus took about 5 days to fully come to life (I waited 3 days before first use). At first I could feel the coils like sleeping on a bed of firm slinkys. That has since corrected with more time but every now and then I can feel them depending on movement. The mattress is definitely firm and has helped with my issue but the quality is not that great. It is doable even if it only lasts a couple of years but I am planning to go into the store, try out and spend a bit more. I am finding that unless I pop $3k, most just aren’t that great for the long haul. I give a 4 bc of price but 3 for quality. I have 10” and thinking 12 or 14 may have been better (assuming just as firm)

  6. Amazon Customer

    My back pain deleted and I can finally sleepI’ve had this bed so far for over a month. So far I love it so much, our old bed was sagging to a point where I straight up slept on the floor because it felt better on my back. I finally decided to just buy a new mattress. Best purchase I’ve ever made. It’s the perfect firmness for me it’s firm enough to decompress my spine but soft enough to sleep on my side (wouldn’t recommend for tummy sleepers tho) Almost all my back pain is gone and I don’t wake up with headaches every morning anymore. I sleep so well for the first time in my life I actually sleep through the night without medicine. I love this bed so much. Also it unfolded just fine I had no issues with it messing up or anything. It is heavy though and the box isn’t the most sturdy things if you have to carry up stairs. But the mattress itself Is amazing!!!!

  7. Mauricio Freyre

    Short term reviewI’ve only had the bed for a little over a month now and it’s been great to me so far. I’m weary of how long it will actually last but I won’t know that answer for a few years. Mattress comes in a big box rolled up so be careful opening it and cutting the plastic wrap holding it together.

  8. Jeanine Labnow

    Best money I’ve spent in awhile.I got this on a Prime Day sale. The reviews seemed mixed but at the price I couldn’t pass it up. I am SO happy and my sleep has never been better! A lot of negative reviews are based on the firmness scales. Different sizes have different firmness ratings – you have to match both (READ the description of your item before purchasing!). I needed a double and extra-firm. This is EXACTLY that. I have another twin mattress in the guest room made by a name brand company that cost 4 times as much as this. I can tell absolutely NO difference in build quality. I rarely write reviews, but was so happy to find a budget competitive product that was actually outstanding.

  9. Buyer

    Quality productI usually do not write reviews. But my total satisfaction with this high-quality mattress convinced me to put this comment. It is the most comfortable mattress with the exact desired firmness I have ever had. Plus, the delivery was quick and precise. Thank you.

  10. Dan

    Don’t listen to the bad reviewsI saw some reviews that said it was stiff and the mattress wasn’t comfortable but I think it’s far from that. It’s honestly a LOT more comfortable than my queen mattress and I spent way more on that than this. It’s definitely worth price and it’s great for a guest room.

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