Imperius Foldable Box Spring, Bunkie Board, Bed Support Slats, Bed Boards for Under, Twin (60x30)

Fits a king bed perfectly and provides the exact support I was looking for. No assembly required, no noises. Because of the fabric elastic strip they have to fold them up and keep them together the bed doesn't slide around too much but you may need to add grip strips if your bed is on a flat base. But these boards are thin, yet very sturdy, and a good value. Be careful when you order though. I accidentally ordered the wrong size the first time.

Item was junk. Not suited for intended purpose. First it arrived with nothing ends of the box open and the item sliding out either end when attempting to carry it in. I ordered a full size board. It completely failed to cover the size of the bed frame and offered zero support for the mattress. Plus, it’s so cumbersome that returning it is not worth the hassle. Total waste of money.

I bought a memory foam mattress and could feel the metal bars of the bed frame through the mattress. I added this bunkie board and now I can sleep comfortably! Super awesome product that supports memory foam mattresses.

It's a bit fragile and doesn't cover the entire length of the bunkbed

This product is significantly smaller than the size mattress that is meant for. I purchased it to spread out the load of full mattress over metal bed frame rails that were a little bit far apart because of the folds in the product it didn’t do that great of a job and it was really slippery. The mattress slipped around on the bedframe so we ended up returning it and the mattress worked better without this maybe for your specific application you’ll have better luck, but we found this to be kind of a piece of junk.

It good but it needs five boards to fit a twin instead of four. It’s not long enough

It is meant for a single/ chair mattress

I bought 2 twins for some bunkbeds. The boards are about 2 feet to narrow and about 2 and a half feet to short for the beds. The material seems flimsy and not connected very good. I feel like if i place it right in the middle of the mattress it might do a decent job at giving support to most the mattress. I do worry about the weight limit it would have for an adult, since they are so cheaply built. It was easy enough to unfold but doesnt stay in place since its to small for the area needed.