Meliusly Sleeper Sofa Bed Support Board Queen (60x48) - Heavy Duty Wood

Works for us, read below, as we didn't buy it for a sofa bedWe got an old mattress which is high quality and cost almost 3k yearsss back, and finally it started showing some sagging. We love our mattress to be extra firm, and at the moment can't really go buy an expensive one again and unfortunately couldn't find anything we liked for cheaper.We got an extra firm foam mattress topper to fix it (3inch height). It worked well enough, but you could still feel slight sagging under back and bum.I decided to buy this to place on top of the matress and under the topper (sandwich, so to say, and it all sits inside a waterproof mattress cover do nothing is sliding anywhere).Our mattress is queen size, this fits perfectly width wise. As for length, obviously you don't need it to cover the whole thing as it sags under or back/bum area only. But having said that, we placed the boards about 25 cm lower than the top of the matress (and it has 55cm left to the end of the matress), as it felt more comfortable.And honestly, it feels great. The foam topper is now sitting straight and does its job, no sagging, and is nicely firm (I mean, in summer I often sleep on the floor because it's cooler this way, so the firner the better).Might actually never go back to whole classic mattress setup once we get rid of this one, will just get a frame, and use these boards with a topper. Super comfy.Chose hardwood over flex option as flex seems to have a slight give which we do not need.

This is a perfect example of a product that sets out to do thing, and to do it very well. We have a very nice, but now pretty old sofa bed, that our son uses when during his summer visits. About a year ago, we upgraded to a much better mattress, as he let us know the bed was feeling less than great. He had actually taken to dragging the mattress onto the floor to get a better sleep. Not good. I got the Meliusly Support Board, and it made an immediate and drastic difference. He's been sleeping comfortably every night now. The whole thing is elegantly simple and efficient in design, and very well manufactured. In theory, I might have been able to cobble something similar together for less money, but nothing nearly as good as this.

This product does exactly what it is meant to do. The thickness of the reinforced wood boards, within the protective covering, make it impossible to feel the crossbars inside the sleeper frame. The product boards run perpendicular to the frame, and are easy to place/remove. The support board folds like a fan, making it easy to store, taking up little closet space. We experienced no sliding of the mattress on the protective cover. Between the two of us, about 400 pounds was on the bed, and both of us were comfortable. Would purchase again.

The support board definitely erases the ridges caused by the bed frame! The only downside is that it a bit heavy for one person (of a certain age!) to install.

Definitely helped the sag feeling in the mattress.