[Yontsey]

I'm about to close on my house and I'm gonna buy some stuff from Ikea I think for the house. I was told today that I'd be getting a free king size mattress and I was thinking about getting a bed setup from Ikea, but it looks like all the ones I look at just have the mattress sitting on top of slats.

Can you use a box spring for them or are they not made for a mattress and a box spring?