http://trishfindlay.com/resources-to-help-seniors/ has been updated to include:
Looking for an adjustable bed? Best Adjustable Beds Brands Buyers Guide
Report compiled by US Consumer Affairs Research Team & gives good information on types of beds, suitability, surfaces, features of motors, controls, warranty and aesthetics to help you not be taken advantage of during your search. This is followed by reviews of many brands of beds.