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Zinus

Zinus Jayanna 4 Inch BiFold Box Spring / Mattress Foundation / Zero Assembly / Sturdy Metal Structure / Low Profile, King

    • Based on 3,598 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, May 22
Order within 1 hour and 35 minutes
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Size: King


Design: Box Spring


Features

  • Sturdy Steel Frame With Poly Jacquard Cover
  • DIMENSIONS: 79" X 75.5" X 4" | Weight: 50.8 lb
  • BOX SPRING: A bed frame or platform bed is required to support this foundation (sold separately)
  • AS SIMPLE AS UNFOLD & UNWIND - Requiring no tools and zero tedious assembly, the innovative BiFold box spring requires only unfolding to become bedtime ready; the hardest part will be taking it out of the box
  • DURABLY ENGINEERED - Durable steel is used to construct the interior framework of this reliable foundation; slats are spaced 2.8 inches apart; twin size supports a maximum weight capacity of 250 lbs, while all other sizes can support up to 500 lbs
  • LOW PROFILE DESIGN - A 4 inch height is perfect for taller mattresses or for those who enjoy their bed lower to the floor
  • THOUGHTFULLY PACKAGED - All parts and instructions are packed into one compact box that ships straight to your door

Description

Size:King | Design:Box Spring Believe it or not, we’ve made the box spring more functional, more durable, and dare we even say, fun! Our Jayanna BiFold Box Spring is not your average foundation. It features a structure made of thick and durable steel, meaning that frames and mattresses may come and go, but this box spring will be with you for the long haul. What’s more, its folding design not only makes set-up insanely easy, but it also comes in handy on moving day, maneuvering easily in and around tight hallways and corners. Once unboxed, this brilliant foundation practically assembles itself by taking shape once unfolded. Essentially, deciding where to place the bed will take longer than setting up this box spring. Backed by both our 5-year worry free warranty and hundreds of positive customer reviews, the Jayanna box spring is about as easy as decisions get.


Product Dimensions: 79 x 75.5 x 4 inches


Item Weight: 50.8 pounds


Manufacturer: Zinus


Item model number: OLB-BIFD-4K


Is Discontinued By Manufacturer: No


Fabric Type: Sturdy Steel Frame With Poly Jacquard Cover


Is Assembly Required?: Yes


Batteries Required: No


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, May 22

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.

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Similar Products

Top Amazon Reviews

    • Excellent product, works well, easy set up.
Size: Queen
Review Image by carol
Review Image by carol
Review Image by carol
Review Image by carol
Review Image by carol
Review Image by carol
I am a 56 year old woman and I was able to set this up all by myself. It was definitely a bit awkward and heavy-ish. It was not the easiest thing to do without a second person helping, but it is doable. The whole process (from box to finished with bedspread back on the bed) was about 20 minutes. There's nothing to it in terms of set up, other than the awkwardness of wrestling it out of the carton (it's kind of heavy), getting your mattress off the bed by yourself, wrestling the box spring onto the bed by yourself and then putting your mattress back on top by yourself. Once you get it out of the carton and you unfold it, the box spring "springs" to life. There is no assembly required other than unfolding it. It is for a guest bedroom so I haven't had any reports yet from guests sleeping on it. It looks sturdy and the perfect height for my platform bed. It has a much more inviting look now and will be easier for older guests to get in and out of the bed now. I didn't want a full height box spring because that would have been too high. This is perfect. I compared this against the least expensive Queen box spring I could have gotten delivered from a local mattress store and I saved over $100.00 overall (once you figure in $59 for white glove delivery, sales tax and the higher price for the box spring). I am very pleased with the purchase! The pictures I have attached show the process from box to finished bed. You can also compare how low my bed looked before versus how nicely elevated it is after adding the box spring. ... show more
Reviewed in the United States on February 15, 2017 by carol
    • Weak wire frame box spring
Size: Full
Review Image by Val
Review Image by Val
Review Image by Val
Do NOT couple this with a low profile mattress. The metal wires are very thin and cannot support much weight individually. If you have kids who like to hang out on the bed to watch TV, and frequently stand up to get on and off the bed, you're going to want to buy something sturdier than this. I bought this less than a month and a half ago, and all the wires on one side of the bed are already bent. ... show more
Reviewed in the United States on July 21, 2017 by Val
    • Sturdy, Easy to Use, and Works Great!
Size: Queen
Review Image by dugroz
Review Image by dugroz
Search for my username on YouTube (dugroz) and you can see my review/unboxing of the product. This low-profile foundation does exactly what it says it is supposed to do, and does it very well. It comes in a fairly large box and is a bit heavy, so an elderly or frail person would likely need help. However, once it is unboxed, there is no assembly needed, just unfold it, flip it over, and zip it up. (As others said, if you flip it open in the instinctive way, you need to flip it over.) It would be very easy to take with you in a move. This is not a "Box of Springs" - there are no springs inside. 95% of modern mattresses do not need a true "box spring" anyhow so that's fine. The purpose is just to raise up your mattress. It does not soften the mattress, nor is it designed to. "Foundation" is the better name. The bars are about 1/4 inch thick, and about 3 inches apart. The Foundation (as I measured it) was almost exactly 4 1/4" high (no big deal for me, but just noteworthy if you need "exactly" 4 inches in height). I was a bit Leary about using this with my Hybrid mattress since I was afraid that (because the bottom is foam) it would sink through. However, I emailed the mattress company and they assured me that this foundation is fine to use (I have a Sapira mattress). About 3 weeks of use so far, it's holding up fine, and the mattress works very well with it. Very sturdy, no sagging. No noise, no squeaking. We have a queen and it supports two grown adults just fine (the paperwork that came with it says that the queen size and up can support 2,400 lbs. of weight, which seems a bit ridiculous (2 people plus mattress weighing 2,400 lbs???), but the idea is that it is sturdy. . The sides are a nice patterned white cloth. Nice enough that we have not felt the need to cover it with a sheet like with did with our old one! I would recommend this foundation if 4 inches is the best height for your bed setup. Edit: 05/01/2017 - Still holding up great. ... show more
Reviewed in the United States on January 3, 2017 by dugroz
    • A NO SLEEPER !!!
Size: Split King
WARNING * WARNING * WARNING!!!😩 I read the reviews on this item prior to purchasing so I knew it had a real problem with squeaking noises after a brief wear-in period. However, I took a chance because it seemed to meet all our needs. How bad could a little squeak be? Now unfortunately we have experienced the noise issue firsthand and it is a MAJOR serious problem. We have used this product just a few months now and it squeaks at the slightest movement on the mattress. It makes a terrible noise when getting on the bed and shreiks if you move even a little bit to adjust your position in any way. A slight turn onto your side in the middle of the night is like an alarm going off. These box springs would be perfect except you can’t get a restful sleep unless you could arrange to be lowered onto your bed and not budge a fraction of an inch until you rise again in the morning. Then it would serve a dual purpose as a wake-up alarm that would definitely get you wide-eyed and on the floor! So if you are desperate enough to buy this set of box springs after reading my review then you had better order some weapons-rated ear muffs to go with it! HUGE MISTAKE on my part and now I have to throw this contraption out and go to a mattress store for the real thing. I deserve the extra expense and we also need our sound sleep habits restored. ... show more
Reviewed in the United States on November 11, 2018 by Amazon Customer
    • Not made of stronger stuff
Size: Split King
Review Image by David C. Wallace
Review Image by David C. Wallace
Review Image by David C. Wallace
Review Image by David C. Wallace
Not for an overweight person. I had this on top of the slats from a Zinus King bed under a Purple mattress. When I got a look at the frame 4 months later when returning the mattress I noticed that the side i sleep on was bent quite a bit. I weigh over 300lbs so I guess the twin version (the king version is two twins), can't handle ~400lbs of me and half the mattress. I e-mailed them a week ago but haven't gotten a response. I know what Zinus is, they make stuff that is not truly cheap but also isn't high quality, but it usually gets the job done for the budget. Considering I ordered this because the slats they ship are way too thin for anything but a super stiff bed like I had before, it should have been suitable. I suspect this will be my last Zinus product and I will just have to shell out the money for sturdier stuff. The photos show my side which is all indented, and my dogs side which is still flat, he only weighs 35lbs. ... show more
Reviewed in the United States on August 6, 2017 by David C. Wallace

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