The 740 Series Magnetic Mattress Pad is made using a top layer of structural grade (0.75 ounces per square foot)polyester fiber padding.  The 2^nd layer is 0.75” of visco “memory” foam developed for N.A.S.A.  Visco foam has a firm surface that will mold to your body for deep comfort and support.  In addition, the 740 Series has larger 1” x 0.25” ceramic disc magnets made of 3950 Gauss rated material for more magnetic strength.  The magnets are cradled in valleys of hospital grade convoluted finger foam that adds comfort to the already luxurious pad.  The bottom layer of our 740 Series has polyester fiber padding (0.5 ounces per square foot) quilted to our non-skid fabric backing.  The combination of structural fiber, visco "memory" foam and hospital grade convoluted finger foam gives you the ultimate deep-sleeping surface.