The thought of a water bed sounded so new and exciting the first time you heard about it, then after you tried it out, you realized it has its downsides too (i.e. motion sickness).
With each innovation in this cluster, we are getting closer to developing the perfect sleep situation for all mankind. The materials are becoming more functional, customizable, and environmentally friendly.
For a place where we spend a major portion of our lives (some of us more than others), we ought to be paying more attention to this precious space.