A waveless waterbed mattress contains three to four layers of wave reducing fiber. The fiber provides approximately 80% to 90% motion reduction, while still allowing for a degree of adjustability. You will experience 5-6 seconds of movement, so you can have a waterbed mattress feel, plus all of the wonderful benefits a waterbed mattress has to offer. When your body is buoyed by water your weight is lightened for less pressure. When you are floating in a nearly weightless environment you are not fighting gravity, so your muscles can be truly relaxed for a deeper, more rejuvenating night's sleep. A waveless waterbed is also perfect for allergy sufferers, since dust and bacteria can't penetrate a sealed water mattress. For use in a traditional hard-side wooden box frame. Add a hard-side waterbed heater and you will wonder how a bed could ever be this cozy and comfortable.