Waterbed manufacturer Akva wants to help you with your rhythm in the bedroom with the Akva Sound. The Sound comes with all the squishy goodness you’ve come to expect from a waterbed, but with the added bonus of being able to carry a tune. Using speakers located in a built-in base plate, Akva Sound can pump all sorts of crazy tunes into your body as you sleep, read or do whatever it is people do in a waterbed these days.