Innerspring unit and method of forming same

There is provided a method for forming a spring unit INNER FOAM THAT INCLUDES ENSURING SO IT CAN BE RELEASING A PLURALITY OF SPIRAL (20) to a template (22), providing a reaction mixture foamable (26) A TRAY (10 O 10 '') AND PUTTING THE TEMPLATE SO THAT eNDS THE SPIRAL THAT eXTEND BEYOND THE TEMPLATE ARE SEPARATE END OF SPIRAL. The process is repeated by releasing LAYER FOAM fitting ONE END OF THE SPIRAL, holding SO IT CAN BE RELEASED THE FIRST LAYER FOAM WITH THE ENDS OF THE SAME SEPARATE a tray having said reaction mixture foamable IN THE SAME FOR THE SECOND END OF LACY SPIRAL IN A second foam layer. FORMING A MATTRESS a plurality of sections UNIT FORMING innerspring AGREE WITH THE ABOVE CAN BE COMBINED WITH A COVER TO DEFINE A MATTRESS. SELECTING THE FIRM OF SPIRAL OF ADJACENT SECTIONS MAY BE PROVIDED IN DIFFERENT REGIONS MATTRESS FIRMNESS.