Multi-air chamber mattress with localized support

Abstract

Described herein are mattresses with localized air chamber support. A mattress can include a first air chamber positioned at a shoulder region, a second air chamber positioned at a hip region and fluidly connected to the first air chamber, and a foam insert positioned between the air chambers. The air chambers can share a common internal pressure. Decreasing the common internal pressure in the air chambers can cause the foam insert to increase support at a lumbar region of the mattress. Additional foam inserts can be positioned between at least one of the first air chamber and a head end of the mattress, the first and second air chambers, and the second air chamber and a foot end of the mattress. The mattress can also include a foam rail structure that extends around a perimeter of the mattress to surround the components therein.

What is claimed is: 
     
         1 . A mattress comprising:
 a first air chamber;   a second air chamber fluidly connected to the first air chamber; and   a foam insert positioned between the first air chamber and the second air chamber.   
     
     
         2 . The mattress of  claim 1 , wherein the first air chamber is positioned at a shoulder region of the mattress and the second air chamber is positioned at a hip region of the mattress. 
     
     
         3 . The mattress of  claim 1 , wherein the first air chamber and the second air chamber have a common internal pressure. 
     
     
         4 . The mattress of  claim 3 , wherein decreasing the common internal pressure in the first air chamber and the second air chamber causes the foam insert positioned between the first air chamber and the second air chamber to increase support at a lumbar region of the mattress. 
     
     
         5 . The mattress of  claim 1 , wherein one or more additional foam inserts are positioned between at least one of (i) the first air chamber and a head end of the mattress, (ii) the first air chamber and the second air chamber, and (iii) the second air chamber and a foot end of the mattress. 
     
     
         6 . The mattress of  claim 1 , further comprising a foam rail structure including a head portion, a foot portion, and first and second side portions, the foam rail structure configured to extend around a perimeter of the mattress to surround the first air chamber, the foam insert, and the second air chamber. 
     
     
         7 . The mattress of  claim 6 , wherein the second air chamber extends from a hip region of the mattress to a location adjacent to an inner surface of the foot portion of the foam rail structure. 
     
     
         8 . The mattress of  claim 6 , wherein the first air chamber extends from a location adjacent to an inner surface of the head portion of the foam rail structure to a shoulder region of the mattress. 
     
     
         9 . The mattress of  claim 1 , wherein the foam insert comprises a rectangular open cell foam cushion positioned between the first air chamber and the second air chamber at a location exterior to both the first air chamber and the second air chamber. 
     
     
         10 . The mattress of  claim 1 , wherein the foam insert is positioned between the first air chamber and the second air chamber so as to physically separate the first air chamber from the second air chamber longitudinally. 
     
     
         11 . The mattress of  claim 1 , further comprising a first section extending longitudinally between a head end and a foot end of the mattress and extending laterally between a left side and a midline of the mattress, and a second section extending longitudinally between the head end and the foot end of the mattress and extending laterally between a right side and the midline of the mattress, wherein the first section comprises the first air chamber, the second air chamber, and the foam insert, and the second section comprises a third air chamber, a fourth air chamber fluidly connected to the third air chamber, and a second foam insert positioned between the third air chamber and the fourth air chamber. 
     
     
         12 . The mattress of  claim 11 , wherein the third air chamber and the fourth air chamber have a second common internal pressure, wherein the second common internal pressure is different than the common internal pressure of the first air chamber and the second air chamber. 
     
     
         13 . The mattress of  claim 11 , wherein the foam insert within the first section has a first firmness level and the second foam insert within the second section has a second firmness level, wherein the first firmness level is different than the second firmness level. 
     
     
         14 . The mattress of  claim 1 , further comprising a foam layer positioned between a top surface of the mattress and each of (i) the first air chamber, (ii) the second air chamber, and (iii) the foam insert. 
     
     
         15 . A mattress extending longitudinally between a head end and a foot end and extending laterally between left and right sides, the mattress comprising:
 a first air chamber;   a second air chamber fluidly connected to the first air chamber so as to have a common internal pressure in the first and second air chambers; and   a first foam insert positioned between the first air chamber and the second air chamber so as to physically separate the first air chamber from the second air chamber longitudinally.   
     
     
         16 . The mattress of  claim 15 , wherein the mattress further comprises a foam rail structure including a head portion, a foot portion, and first and second side portions, wherein the foam rail structure extends around a perimeter of the mattress, wherein the first air chamber is positioned at a shoulder region of the mattress and extending laterally between locations adjacent to inner surfaces of the first and second side portions of the foam rail structure, and the second air chamber is positioned at a hip region of the mattress and extending laterally between the locations adjacent to the inner surfaces of the first and second side portions of the foam rail structure. 
     
     
         17 . The mattress of  claim 15 , further comprising:
 a second foam insert positioned between the first air chamber and a location adjacent to an inner surface of the head portion of the foam rail structure and extending laterally between locations adjacent to inner surfaces of the first and second side portions of the foam rail structure; and   a third foam insert positioned between the second air chamber and a location adjacent to an inner surface of the foot portion of the foam rail structure and extending laterally between the locations adjacent to the inner surfaces of the first and second side portions of the foam rail structure.   
     
     
         18 . The mattress of  claim 17 , wherein the second air chamber extends longitudinally between the first foam insert and the location adjacent to the inner surface of the foot portion of the foam rail structure. 
     
     
         19 . A mattress extending longitudinally between a head end and a foot end and extending laterally between a left side and a right side, the mattress comprising:
 a first section extending longitudinally between the head end and the foot end and extending laterally between the left side and a midline of the mattress, wherein the first section comprises:
 a first air chamber; 
 a second air chamber fluidly connected to the first air chamber so as to have a first common internal pressure in the first and second air chambers; and 
 a first foam insert positioned between the first air chamber and the second air chamber so as to physically separate the first air chamber from the second air chamber longitudinally; and 
   a second section extending longitudinally between the head end and the foot end and extending laterally between the right side and the midline of the mattress, wherein the second section comprises:
 a third air chamber; 
 a fourth air chamber fluidly connected to the third air chamber so as to have a second common internal pressure in the third and fourth air chambers; and 
 a second foam insert positioned between the third air chamber and the fourth air chamber so as to physically separate the third air chamber from the fourth air chamber longitudinally. 
   
     
     
         20 . The mattress of  claim 19 , further comprising a pump system having one or more air pumps fluidly connected to the first, second, third, and fourth air chambers, wherein the pump system is configured to inflate the first and second air chambers to the first common internal pressure and to inflate the third and fourth air chambers to the second common internal pressure, wherein the second common internal pressure can be different than the first common internal pressure.