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.

Bought this for my new bed that requires a box spring. I dreaded it because I remembered how the squeaky wooden ones used to drive me crazy. These smart box springs are not only easy to assemble but are solid and offer great support. Bet of all, they are quiet. NO SQUEAKING OR ANY OTHER SOUNDS!! To top it off my memory foam mattress is so much more better supported that it changed the feel of the mattress. My expectations have been far exceeded and believe me you will not regret purchasing this box spring.

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.

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.

Easy to assemble sturdy and looks good

[This review was collected as part of a promotion.] Easy assemble %26 sturdy. Fit bed perfectly.

Very nice, I bought this for a spare bedroom, and it works well.

was totally surprised and easy on the budget.

Easy to assemble and sturdy frame

Nice product but hard to put together