Almost 24 hours (in 2 hours it will be 24hrs) and the mattress is very firm and the coils can be felt poking through the top layer is very thin like very thin its like a sponge on top of springs if you lay on top you can feel them the card said to wait 72 hours will be back when the time is up and will update.

I don't need multiple hours of laying this out and then assembling it (20 metal rods to screw together). To hold it while screwing rods together likely would have taken a second person to hold it. Two people x two hours minimum, not worth it. As soon as I took one look at the directions, I knew after committing time to assembly, it might not be right and cover might not fit, etc..... We sealed it up and returned it to Samsclub. I ordered another brand from a local furniture store (no assembly) and even with picking it up, it was surely less time than I would have spent on this.

This Box Spring needs some assembly. My wife and I are 73 years old and had it assembled in less than one hour. This item is the best "thought through" assembly I have ever seen. You will literally never have to replace this box spring. 1st class parts from beginning to end, looks great, and will perform great. I promise it will surpass all of your expectations.

Box springs have... springs. This doesn't. It's a metal torture rack no different than every other cheap foundation made for beds today. Anyone born after 2000 probably doesn't even know what a real night's sleep is. Box springs have actual springs, not metal coils that don't move. Imagine the difference between sleeping on a metal slab and sleeping on a trampoline with give. Box springs have SPRINGS. This doesn't.

I'm a 78yr old mechanically skilled arthritic, the most difficult step was bringing the box in and making myself follow the directions. Pros: Best directions I've seen in years. Excellent small parts package, well marked, even the spares. Good provided tools. All the parts fit!!! Cons: Nothing of consequence, the cross bars are a "snug" fit, I tapped them in with a rubber mallet. Total time from box opening to setting the mattress on top was just under an hour and a half.

We had the queen 9" boxspring together for about a week. Today one of the center supports fell to the ground. It pulled apart somehow and does not go back as it should. Currently using zip ties to hold it together and adding more support underneath tomorrow.

The frame pieces could?ve been labeled and the fabric cover could?ve been a little bit bigger. The pieces that like hold the mattress just lock in. Sorta wished there was at least the option to screw them into place. All in all it does its job, fits our frame well. Very firm sadly but that?s my bad for not realizing that it wasn?t an actual box spring.

Unpacked box. Tried to follow the "Easy as 123 " photo instructions. Useless. There weren't 2 "#1" peices. Actually thought one of them wasn't in box. Shipping said 9 frame peices. There were 9. Finally looked at bed frame picture. Laid out peices on bed frame. Only thing I used instruction sheet for was to see which screws went where. Could have saved myself 15 minutes if I just would have done that in the first place.

A put together metal frame that took me about an hour to assemble on my own. I was expecting a regular box springs. Maybe it's time to move on from that. With a king size it's a 9" platform which mashes the bed a lot higher than expected, but seems super comfy if you like a firm bed. Jumping up into bed might be worth the $100 we saved over a serta box springs

i wasnt amazed because i previously had purchased a zinus mattress but what was cool was how easy it was to put together, cover and slip onto the frame under the mattress (yes i know i did everything backwards ) and how everything came together like clockwork.Thanks Zinus!