Contour retaining support cushion

A support cushion for a seated human body comprising:

• a flexible casing having at least a top support layer and a bottom bearing layer, said casing having a forward region to be disposed under the body's thighs and a rearward region to be disposed under the body's buttocks;
• a bottom layer of resilient foam material positioned on said casing bottom bearing layer and extending into said forward and rearward regions of said casing;
• a fluid-filled pad positioned on top of a portion of said bottom layer of resilient foam material in said rearward region of said casing, said pad extending rearwardly from said forward region in a configuration defining a void over which the seated body's sacral area and coccyx can be disposed and defining lateral portions on both lateral sides of said void over which the seated body's ischial tuberosity area can be disposed;
• a forward mass of resilient foam material extending forwardly of said fluid-filled pad in said casing forward region over which the seated body's thighs can be disposed, said forward mass of resilient foam material including a front portion that is thicker than said fluid-filled pad and that extends to an elevation higher than the upper surface of said fluid-filled pad, said forward mass of resilient foam material including a rear portion having an upper surface tapering from said front portion to substantially the same elevation as the top of said fluid-filled pad, said front and rear portions of said forward mass of resilient foam material having a combined length extending forwardly from said fluid-filled pad for supporting the seated body's thighs forwardly of the body's buttocks, said forward region of said cushion below said forward mass of resilient material being devoid of any fluid-filled pad below said forward mass of resilient foam material;
• and
• a top layer of resilient foam material disposed to extend over said forward mass of resilient foam material and said fluid-filled pad, said top layer of resilient foam material being of substantially uniform thickness where it overlies said fluid-filled pad and said forward mass of resilient material, said top layer of resilient foam material conforming to the tapered upper surface of said forward mass of resilient material, said top layer of resilient foam material extending into said rearward region of said casing in a configuration defining a top layer void and defining top layer lateral portions on booth sides of said top layer void, said top layer lateral portions being generally in registry with said pad lateral portions to generally register said top layer void with said pad void.