Eastern King 4000LS Softside Pillow Top complete waterbed with Mattress King Softside waterbed has a luxurious pillowtop that is made with a organic cotton outer quilt. Pillow top is Super Breathable and Very Soft. Water Support will contour to your body for pure comfort 95% Waveless Support has about 3-4 seconds of slow movement Easy To install, Compatable to most headboards just like a regular bed