I recently decided to join this year with the Black Friday Cyber Monday craze. Came across this deal of the day for an Adjustable Bed base:
I checked CamelX3 and the Queen size is selling for $469.96 (down from $699.00 with no prior discount history). There was another adjustable on Slick Deals from another brand, but I followed the link and the Deal of the Day had ended. This one is still going, so check it out.