The frame is easy to set up, sturdy, and we are pleased. We are playing musical beds in our small condo...and I have yet to make a mattress selection.  I know it won't be foam, so I hope it can lay directly on this frame.   I think we will get rid of the king mattress and buy another twin frame as two twins make a master size. That is, if we can have the same price we paid for the one delivered. With back injury, any motion from another person is painful.   I prefer two twin frames to the larger connected size as it gives more options down the road.