The wife and I are so used to our waterbed(in stick house) that we have a very hard time sleeping on any regular mattress. We have been using a Coleman air bed and so far we have gone thru 2. For some...
there are a ton of different air beds at all different prices... I am not that nuts about a sleep # either.. but any air bed will allow you to adjust it to your back. Just isn't zoned like the sleep # .. Go to amazon or overstock.com.