How do you fix a peaking bed mattress?
We have a king bed that is peaking or bowing in the middle. We both sleep on the edges so the middle is starting to peak up. It is a pillowtop so we can’t flip the mattress over and it can’t be turned sideways because the mattress is not square. Any ideas on how to fix it?

The poor quality polyurethane foam used in many pillowtops rapidly degrades resulting in body depressions. One option is to cut off the top layer and replace it with a latex topper and a wool fleece pad.
http://www.foambymail.com/LatexTopper.html
http://www.cuddledown.com/shopping/product/detailmain.jsp?itemID=745&itemType=PRODUCT&RS=1&keyword=fleece