I bought the 4" folding box springs so that I could lift my 14" combo mattress out of the sleigh bed well. Before, I couldn't make the bed very well. It's perfect, just high enough. I was worried that when it came out of the box & plastic, that it would snap open, not constructed that way. It gently unfolds (you have to push it apart) and then you zip up the cover. I did a queen size all by myself. I have a bunkie board underneath it, so I actually put the folded box springs on that before I opened it.

I was especially surprised that both split-king box springs came in one box. The bed frame was easy to put together and the box springs were even easier to unfold. I find myself going to bed early every night now that I have my new bed. Thank you Zinus!

I just received my 5 in bifold full size box spring, however I’m now realizing its 1 inch smaller on both ends than the mattress I was going to order. I am having a hard time finding a mattress the same size. Will the extra inch on my mattress look and feel right? Not sure why the dimension's are off. I would think a full size boxspring would be the same dimensions as a full size mattress?

It unfolds easy but no instruction how to fold back up. I am returning because it is not exactly box springs. I bought the twin size. It just gets the mattress off the floor. I wasn't going to use it for permanent use. Just for grandchildren visits and wanted to be able to store it. It was a fail for me but I can see where it can save people money. I just need instructions how to fold it back.

Arrived quickly and was easy to fold out. Also, this product is cheaper (and obviously, much more convenient and sturdy) than the junk others sell at the big box mattress stores. We recently bought an Avocado King mattress and that company does not sell box springs so they recommended Zinus. Glad they did! The new mattress sat too low on our new bed but now with the steel box springs, it is perfect. Note that we originally had the box springs up-side down which is not comfortable. After a night's sleep, we woke up smarter, did the flip and now the new bed, new mattress and new box springs work in harmony.

Never could have imagined how wonderful my new Zenus bed box spring and bed frame are but the main thing is I sleep pardon the expression like a baby and that doesn't mean I wake up and cry a lot! Fabulous support and yet feels so soft so comfortable I can't believe I didn't know about this until a few months ago. I am so glad that I got the bed that I got my back feels great my hips my neck everything thank you so much Zinus I couldn't sleep without you. Fabulous support and yet feels so soft so comfortable. I can't believe I didn't know about Zinus until a few months ago. I am so glad that I got the bed that I got; my back feels great my hips my neck everything! Thank you so much Zinus I couldn't sleep without you!

I had already purchased the 13" Night Therapy Deluxe Euro Box Top Spring Mattress and needed a new Foundation. The video that showed the Night Therapy Bi-Fold Box Spring Folding Foundation-Full showed it being placed on the existing full size bed frame. When I received this bi-fold foundation, it did not fit my existing frame. I checked and found the Night Therapy Smart Base Steel Bed Framed Foundation-full, for $100 less. I now have my new bed setting on the floor because I ordered the wrong foundation. In that respect, I am not satisfied fully with this purchase. Maybe this will help someone else purchase the correct items.

The craziest thing of this BiFold Box Sping is the Assembly process. It took me less than 5 minutes to break the box seal, unpack each of the Boxes, Lay them on the wooden slats of my Bed and unfold them to zip the clothing cover. And I'm pretty sure, It will take the same amount of time to pack them when moving as well. Don't hesitate. Just get this Box Spring and leave everything else to Zinus.

So many mixed reviews about this product. I honestly was nervous ordering it. But after such terrible service and false delivery promises by brick and mortar mattress stores, I hit the internet. I ordered the folding frame and the 12" queen green tea mattress. The boxes were promptly delivered (I received the boxes 3 days after ordering) via FedEx. I did have to enlist the help of a friend to get the boxes not only into the front door but up some stairs. The boxes are heavy and large. However unpacking and setting up were a one woman job and I was able to set up on my own. I have no idea the sorcery that goes into the folding frame. With a quick unfold and a zip up it was ready to go. The mattress was also a quick release from its plastic wrap. I left the mattress alone for 2 days before putting bedding on it and sleeping on it. The mattress reached its full 12" the same day as unpacking it. NOTE OF FULL DISCLOSURE for future buyers: I am only 2 weeks into sleeping on the bed and mattress, but these 2 weeks have been excellent! So comfortable! My first impression was that it was too firm for a back sleeper like myself, but that is not the case. I really hope these products last several years. So far so good and I have no regrets!

I love this box spring! I got the 4” for my queen bed and it’s much quieter than the bunkie board I was using before. As a matter of fact, it doesn’t make a sound. My bed is much for stable and comfortable because of it. I will be replacing my son’ bunkie board with a Zinus box spring within the next few weeks. Assembly (or lack thereof) was also a breeze - simply unfold and place the cover on!