The product features significantly lighter weight with portable and adjustable cylinder support. Portability enables you to move your waterbed and adjust the flotation sleep cylinders to your personal comfort preference for a great night's sleep. By filling each cylinder with different levels of water you can create the feel you desire and each side of the mattress can be customized for dual comfort levels in one mattress. Featuring the latest in sleep technology the phase change temperature controlling top fabric helps maintain a comfortable sleeping environment while the plush-top upper panel components include specially formulated contouring comfort layers and moisture barrier protection all while fitting standard-size sheets & bedding. The benefits of fluid suspension support are well documented in medical and sleep research. Minimizing pressure points on the human body which consists of 90% water, your body floats in a near-weightless environment helping to reduce muscle tension and tossing & turning. And the waveless cylinder support system virtually eliminates motion for the deepest most rejuvenating sleep. Complete with accessories this lighter weight easy-to-move modular system includes everything you need to fill, drain, and maintain your waterbed (foundation not included). The mid-fill beds are 6" deep with water, using a single or dual water mattress. The shallow fill beds use water cylinders in either a free-flow or wave-less configuration.