We have a regular king but not a California king, but when we bought it we paid a little extra for them to make it so it would bend in the middle without damaging the mattress. It is good we have that because in our current house we have a staircase that goes half way up then makes a 90 degree angle and goes the rest of the way up. We would have never gotten it up there without that bend in it.
Jennifer
mom to Jacob 9/27/02