Search  for anything...

ZINUS 12 Inch Support Plus Pocket Spring Hybrid Mattress, Extra Firm Feel, Heavier Coils for Durable Support, Pocket Innersprings for Motion Isolation, Mattress-in-a-Box, King , White

  • Based on 10,924 reviews
Condition: New
Checking for product changes
$609.99 Why this price?

Buy Now, Pay Later


As low as / mo
  • – Up to 36-month term with PayTomorrow
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Only 9 left in stock, order soon!
Fulfilled by shop and stack

Arrives May 5 – May 12
Order within 17 hours and 44 minutes
Available payment plans shown during checkout

Color: White


Size: King


Style: 12" (Original Box)


Features

  • 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.Set Up: Simply take your mattress out of the box and enjoy watching it decompress. Jumping, walking, and sleeping on your mattress can speed up the process.
  • 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 thats 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 thats 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

Description

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.

Size: King


Special Feature: Durable


Fill Material: High Density Foam, Memory Foam


Brand: Zinus


Product Dimensions: 80"L x 76"W x 12"Th


Color: White


Coil Type: Pocketed Coil


Model Name: Support Plus


Product Care Instructions: Hand Wash Only


Cover Material: Microfiber


Product Dimensions: 80 x 76 x 12 inches


Item Weight: 108.8 pounds


Manufacturer: Zinus


Item model number: AZ-PPSM-12K


Is Discontinued By Manufacturer: No


Thickness: 12 Inches


Fabric Type: Comfort and High Density Foams With Heavy Gauge Pocket Springs


Refill: High Density Foam, Memory Foam


Maximum recommended load: 500 Pounds


Care instructions: Hand Wash Only


Assembly required: No


Number of pieces: 1


Warranty Description: Worry-free 10 year limited warranty included.


Batteries required: No


Included Components: Mattress


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 5 – May 12

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Klarna Pay in 4
  • PayTomorrow Financing
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Zinus extra firm 12 inch
Color: White Size: King Style: 12" (Original Box)
Outstanding bed. I did research and going back and forth for months and I’m glad I went with the zinus extra firm. It is extremely firm but still cushioned due to the springs but it’s definitely a much better sleep now than I’ve had in the past. I definitely recommend this mattress It’s a high quality mattress for such a low price, it’s better feeling and quality than some of the $1500 mattress I tested. If you’re thinking about it just do it don’t hesitate ... show more
Reviewed in the United States on February 20, 2024 by brian

  • Excellent Firm Mattress- Good Price, High Quality- Worth the Expense
Color: White Size: King Style: 12" (Original Box)
Short 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. ... show more
Reviewed in the United States on November 16, 2018 by @leighttweets @leighttweets

  • True to firmness and won’t sag!
Color: White Size: Full Style: 10" (Original Box)
I bought this in size twin a year ago because I was living in a small room. It was indeed extra firm so I bought a topper and I figured because of the low price it wouldn’t last long. I’ve bought IKEA mattresses (around the same budget) and within 3 months there was sagging/ sinking so I expected to get the same quality but nope. Had this bed for a year and NEVER sagged! Firmness stayed intact and looks like a luxury mattress! Win win. Fast forward a year later, I moved into a bigger place and could buy a bigger mattress so I decided to give away this twin one and spurge on a more expensive mattress. What a mistake that was! I tried the purple ($1100), the winkbed firmest option ( $1300) and both mattress I would sink in and be sleeping in the mattress versus on top. The purple I kind of expected it because it isn’t advertised as firm but I was intrigued by trying a new material. My friend has the purple and loves it but he likes medium firmness. So nothing against Purple, their customer service was fantastic! The mattress has a very interesting feeling when sleeping on it. They do have other more expensive options and their customer service is great so I’d definitely recommend them. Now as for Winkbed, stay away! With their advertised “firmer mattress” I was sinking in as soon as getting it, I waited days hoping it just hadn’t decompress and nope, it has gotten worse. So bad that I’m taking painkillers everyday to deal with the body aches of sleeping inside the mattress. The company although they advertise a “say nothing and get a refund” I have been emailing them explaining my situation for days, and they have yet to process a refund. They give me copy-and-paste like responses that have nothing to do with my issues like saying it will get softer in time when I’m not saying it is hard, I’m saying I’m sinking in. So how will it getting softer help me? So my experience with Winkbed customer service have been awful. No empathy, no responsibility (think they sent a defective mattress), and not keeping to their word. Also, I tried to leave a review on their website and you can’t. So makes me wonder who can leave reviews on their site? Anywho, stay away. After two failed “splurge” mattress purchases and one awful customer service experience (Winkbed), I decided to go back to the bed that was truly firm! Sometimes the “you pay what you get for” isn’t true. I got a way better, true to firmness, no sagging price at 1/4 of the cost with this mattress! Save yourself money, if you need a true firm mattress, and get this mattress. Recommend ⭐️⭐️⭐️⭐️⭐️ ... show more
Reviewed in the United States on December 13, 2023 by Karole

  • Has helped with back pain.
Color: White Size: Queen Style: 10" (Original Box)
This bed is firm enough to have helped my husband's back pain a lot. It's not perfect, comfortable but not the best I've ever had. Overall good quality for the price.
Reviewed in the United States on March 10, 2024 by Miss Marla Moon

Can't find a product?

Find it on Amazon first, then paste the link below.