If you have a low profile bed with slats that aren't close together, this is just what you need for a  memory foam or other type of mattress. We chose this for a new memory foam mattresses, b/c it allows the mattress to "breathe". I was surprised at how heavy this Bunkie board it. The wood slats are very durable. I think there is an intentional "bowing "of the wood that is meant to give extra support, but you do not feel it when the mattress is on the board.  The reason I did not give 5 stars was that I ordered a full size, and when I put it on the slats of the platform bed, it was not as big as I was hoping. Do not expect it to be a mirror image size wise of you full size mattress dimensions. It will be smaller. But, it is working out very well. There is no shifting , and I am very please. I would repurchase this.