Definitions for "Waterbeds"
is a category of beds that became popular in the 1970's and took over 20% of the mattress market. Waterbeds altered for good the public perception that "firmer is better," a myth generated by the mattress industry early on. Waterbeds now own a very small market percentage because of the entry of airbeds and a variety of foams, as well as problems with leaks and pumps.