I was browsing beds at Ikea today and couldn't really figure out king-sized beds. Our bed is the only bed we've ever bought, and it has a headboard, footboard, and rails with a boxspring that sits on top (on the edges of the rails). From the looks of the beds at Ikea (that were not the super low platform beds, which is not ideal for us), You purchase 2 boxsprings, attach legs to them, and attach a separate headboard?

I'm so confused! Googling, too, but not really getting anywhere.