Waveless a. : Free from waves; undisturbed; not agitated; as, the waveless sea.

Example:
I want a Waveless Waterbed Mattress, do they still make them?

Taxonomy
how to, waveless waterbed, drain, waterbed, tutorial, do it yourself, wave, baffles, vinyl.

Defination from the web:
waveless waterbed. What makes a water bed wave-less are the fiber baffles inside the vinyl lining of your mattress. While they don't...