Sealy is one of the stocks poised to benefit from bed bug epidemic. People with bed bug infestations usually replace their matresses. Of course, any recovery in the economy and housing will be just icing on the cake.
An example of how bed bugs could be kept out of beds: some sort of base isolation system, an inpenetrable barrier that the bugs couldn't get around. Something as simple as placing the bed legs in pans of water? Or perhaps some adhesive.