Sleeping pad with dual coated bottom sheet and central layer

Abstract

An inflatable sleeping pad or air mattress comprises an inflatable pad having a top layer and a bottom layer. At least one middle layer is disposed parallel to the top and bottom layers, and supported between the top layer and the bottom layer by a plurality of support baffles, wherein a first plurality of support baffles is disposed between the at least one middle layer and the top layer, and a second plurality of support baffles disposed between the at least middle one layer and the bottom layer. The sleeping pad further comprises an air inlet/outlet valve disposed on at least one of the inflatable pad top or bottom layers.

The invention claimed is: 
     
         1 . (canceled) 
     
     
         2 . An inflatable sleeping pad comprising:
 an inflatable pad having a top layer and a bottom layer, said top and bottom layers disposed parallel to one another and having a length and a width;   at least one middle layer constructed of a first material having a length and a width and disposed parallel to said top and bottom layers, and wherein said at least one middle layer is supported between the top layer and the bottom layer;   a plurality of support baffles, a first plurality of support baffles disposed between the at least one middle layer and the top layer, and a second plurality of support baffles disposed between the at least one middle layer and the bottom layer; and   an air inlet/outlet valve disposed on at least one of the inflatable pad top or bottom layers.   
     
     
         3 . The inflatable sleeping pad according to  claim 2 , wherein the first and second plurality of support baffles are truss support baffles, attached at predetermined locations between the top layer, the middle layer, and the bottom layer. 
     
     
         4 . The inflatable sleeping pad according to  claim 3 , wherein said first and second plurality of truss support baffles are made of a heat weldable material and are spot welded at predetermined locations between the top layer, the middle layer, and the bottom layer. 
     
     
         5 . The inflatable sleeping pad according to  claim 4 , wherein said top and bottom layers each include an interior facing surface, and wherein each of said interior facing surfaces of said top and bottom layers include at least a plurality of heat weldable regions. 
     
     
         6 . The inflatable sleeping pad according to  claim 4 , wherein said at least one middle layer includes a plurality of openings. 
     
     
         7 . The inflatable sleeping pad according to  claim 6 , wherein predetermined regions of said first plurality of truss baffles are welded at predetermined points directly to predetermined regions of said second plurality of truss baffles through said plurality of openings in said at least one middle layer. 
     
     
         8 . The inflatable sleeping pad according to  claim 7 , wherein said at least one middle layer is not heat weldable. 
     
     
         9 . The inflatable sleeping pad according to  claim 2 , wherein the at least one middle layer is constructed of a thermal energy reflective material. 
     
     
         10 . The inflatable sleeping pad according to  claim 9 , wherein the middle layer is a mylar coated aluminum sheet. 
     
     
         11 . The inflatable sleeping pad according to  claim 2 , wherein the bottom layer is coated with polyurethane on at least predetermined regions of an inner surface and generally entirely on an outer surface thereof. 
     
     
         12 . The inflatable sleeping pad according to  claim 3 , wherein said at least one middle layer includes two middle layers, wherein said two middle layers are supported between the top and bottom layers in a spaced apart configuration, and wherein the plurality of truss baffles include a first plurality of truss baffles disposed between said bottom layer and a first one of said two middle layers, a second plurality of truss baffles are disposed between said first one of said two middle layers and said second one of said two middle layers, and wherein a third plurality of truss baffles are disposed between said second one of said two middle layers and said top layer. 
     
     
         13 . the inflatable sleeping pad according to  claim 12 , wherein said first, second and third plurality of truss baffles are made of a heat or ultrasonic weldable material. 
     
     
         14 . The inflatable sleeping pad according to  claim 12 , wherein each of said first and second middle layers include a plurality of openings. 
     
     
         15 . The inflatable sleeping pad according to  claim 14 , wherein predetermined regions of said first plurality of truss baffles are welded at predetermined points directly to predetermined regions of said second plurality of truss baffles through said plurality of openings in said first middle layer, and wherein predetermined regions of said second plurality of truss baffles are welded at predetermined points directly to predetermined regions of said third plurality of truss baffles through said plurality of openings in said second middle layer. 
     
     
         16 . The inflatable sleeping pad according to  claim 12 , wherein said two middle layers are not heat weldable. 
     
     
         17 . An inflatable sleeping pad comprising:
 an inflatable pad having a top layer and a bottom layer, said top and bottom layers disposed parallel to one another and having a length and a width, wherein said top and bottom layers each include an interior facing surface, and wherein each of said interior facing surfaces of said top and bottom layers include at least a plurality of heat weldable regions;   at least one middle layer constructed of a thermal energy reflective material having a length and a width and disposed parallel to said top and bottom layers, and wherein said at least one middle layer is supported between the top layer and the bottom layer and comprises a plurality of openings;   a plurality of truss support baffles constructed of a heat weldable material, a first plurality of truss support baffles disposed between the at least one middle layer and the top layer, and a second plurality of truss support baffles disposed between the at least one middle layer and the bottom layer, wherein said first and second plurality of truss support baffles are spot welded at predetermined locations between the top layer, the middle layer, and the bottom layer, and wherein predetermined regions of said first plurality of truss baffles are welded at predetermined points directly to predetermined regions of said second plurality of truss baffles through said plurality of openings in said at least one middle layer; and   an air inlet/outlet valve disposed on at least one of the inflatable pad top or bottom layers.   
     
     
         18 . The inflatable sleeping pad according to  claim 17 , wherein the middle layer is a mylar coated aluminum sheet 
     
     
         19 . The inflatable sleeping pad according to  claim 17 , wherein the first plurality of baffles is spot welded between the top layer and the middle layer, and the second plurality of baffles is spot welded between the middle layer and the bottom layer. 
     
     
         20 . The inflatable sleeping pad according to  claim 17 , wherein the bottom layer is coated with a polyurethane coating on an inner surface and an outer surface thereof. 
     
     
         21 . The inflatable sleeping pad according to  claim 17 , wherein said at least one middle layer includes two middle layers, wherein said two middle layers are supported between the top and bottom layers in a spaced apart configuration and, and wherein the plurality of truss baffles include a first plurality of truss baffles disposed between said bottom layer and a first one of said two middle layers, a second plurality of truss baffles are disposed between said first one of said two middle layers and said second one of said two middle layers, and wherein a third plurality of truss baffles are disposed between said second one of said two middle layers and said top layer. 
     
     
         22 . The inflatable sleeping pad according to  claim 21 , wherein said first and second middle layers include a plurality of openings. 
     
     
         23 . The inflatable sleeping pad according to  claim 22 , wherein predetermined regions of said first plurality of truss baffles are welded at predetermined points directly to predetermined regions of said second plurality of truss baffles through said plurality of openings in said first middle layer, and wherein predetermined regions of said second plurality of truss baffles are welded at predetermined points directly to predetermined regions of said third plurality of truss baffles through said plurality of openings in said second middle layer. 
     
     
         24 . The inflatable sleeping pad according to  claim 17 , wherein the first plurality of baffles is spot welded between the top layer and the middle layer, and the second plurality of baffles is spot welded between the middle layer and the bottom layer. 
     
     
         25 . An inflatable sleeping pad comprising:
 an inflatable pad having a top layer and a bottom layer, said top and bottom layers disposed parallel to one another and having a length and a width, wherein said top and bottom layers each include an interior facing surface, and wherein each of said interior facing surfaces of said top and bottom layers include at least a plurality of heat weldable regions, and wherein the bottom layer is coated with a polyurethane coating on an inner surface and an outer surface thereof;   at least one middle layer constructed of a thermal energy reflective material having a length and a width and disposed parallel to said top and bottom layers, and wherein said at least one middle layer is supported between the top layer and the bottom layer and comprises a plurality of openings;   a plurality of truss support baffles constructed of a heat weldable material, a first plurality of truss support baffles disposed between the at least one middle layer and the top layer, and a second plurality of truss support baffles disposed between the at least one middle layer and the bottom layer, wherein said first and second plurality of truss support baffles are spot welded at predetermined locations between the top layer, the middle layer, and the bottom layer, and wherein predetermined regions of said first plurality of truss baffles are welded at predetermined points directly to predetermined regions of said second plurality of truss baffles through said plurality of openings in said at least one middle layer; and   an air inlet/outlet valve disposed on at least one of the inflatable pad top or bottom layers.   
     
     
         26 . The inflatable sleeping pad according to  claim 25 , wherein the plurality of truss support baffles are constructed of die-cut low stretch fabric.