Cushion and method of use

Abstract

A cushion for inserting in the legwell between individual seats in rows of seats, for example in a vehicle, is disclosed. The top of the cushion can act as a surface for a user to lie down. The cushion can be inflatable and can be deflated for easy transport. The cushion can have multiple reservoirs so the internal pressure can be separately adjusted for the base and for the mattress of the cushion, similar to a box spring and a mattress in a common bed.

1 . An inflatable cushion comprising:
 a flexible wall defining a first reservoir and a second reservoir, wherein the flexible wall comprises an external wall and a septum separating the first reservoir and the second reservoir;   a first closable valve in fluid communication with the first reservoir and the outside environment;   a second reservoir, wherein the second reservoir is in fluid isolation from the first reservoir;   a second closable valve in fluid communication with the first reservoir and the outside environment;   wherein when the first reservoir and the second reservoir are in inflated configurations the external surface of the wall adjacent to the first reservoir and opposite to the second reservoir is flat, and the external surface of the wall adjacent to the second reservoir and opposite to the first reservoir is flat and parallel to the external surface of the wall adjacent to the first reservoir and opposite to the second reservoir; and   wherein When the first reservoir and the second reservoir are in inflated configurations, the first reservoir has a first reservoir central axis and the second reservoir has a second reservoir central axis, and wherein the first reservoir central axis is collinear with the second reservoir central axis.   
     
     
         2 . The cushion of  claim 1 , wherein the first reservoir is above the second reservoir, and wherein the second reservoir is narrower than the first reservoir. 
     
     
         3 . The cushion of  claim 1 , wherein the first reservoir is above the second reservoir, and wherein the second reservoir is shorter in length than the first reservoir. 
     
     
         4 . The cushion of  claim 1 , wherein the first reservoir further comprises two cells, and wherein the two cells are in fluid communication with each other. 
     
     
         5 . The cushion of  claim 1 , wherein the flexible wall further comprises an internal tensile wall, and wherein the tensile wall is attached to the external wall and the septum. 
     
     
         6 . The cushion of  claim 5 , wherein when the first reservoir is in an inflated configuration, the cell wall is in tension between the septum and the external wall. 
     
     
         7 . The cushion of  claim 1 , further comprising a heater. 
     
     
         8 . The cushion of  claim 1 , further comprising a cooler. 
     
     
         9 . The cushion of  claim 1 , further comprising a third reservoir extending from the first reservoir and in fluid isolation from the first and second reservoirs. 
     
     
         10 . A method of using a cushion in the legwell between a first seat and a second seat in a vehicle, wherein the cushion comprises an inflatable mattress reservoir and an inflatable base reservoir, the method comprising:
 inflating the base reservoir to a first pressure;   positioning the cushion between the first seat and the second seat after the base reservoir is inflated; and   inflating the mattress reservoir to a second pressure;   wherein after inflating the mattress reservoir, the cushion does not extend onto the first seat.   
     
     
         11 . The method of  claim 10 , further comprising applying pressure with the mattress reservoir in a first direction to a seat pad of the first seat and in a second direction to a seat back of the second seat, wherein the first direction is opposite to the second direction. 
     
     
         12 . The method of  claim 10 , wherein the positioning of the cushion occurs before the mattress reservoir is inflated. 
     
     
         13 . The method of  claim 10 , wherein the positioning of the cushion occurs after the mattress reservoir is inflated. 
     
     
         14 . The method of  claim 10 , wherein the first seat is directly behind the second seat. 
     
     
         15 . The method of  claim 10 , wherein the first pressure is greater than the second pressure. 
     
     
         16 . The method of  claim 10 , wherein the first pressure is less than the second pressure. 
     
     
         17 . A method of using a cushion in the legwell between a first seat and a second seat in a vehicle, wherein the cushion comprises an inflatable mattress reservoir and an inflatable base reservoir, the method comprising:
 inflating the base reservoir to a first pressure;   positioning the cushion between the first seat and the second seat after the base reservoir is inflated;   inflating the mattress reservoir to a second pressure; and   applying pressure with the mattress reservoir in a first direction to a seat pad of   the first seat and in a second direction to a seat back of the second seat, wherein   the first direction is opposite to the second direction.   
     
     
         18 . The method of  claim 17 , wherein the first pressure is greater than the second pressure. 
     
     
         19 . The method of  claim 17 , wherein the first pressure is less than the second pressure. 
     
     
         20 . A method for using a cushion system for a passenger in a vehicle comprising:
 positioning a first legwell cushion in a first legwell of a first seat and second legwell cushion in a second legwell of a second seat, wherein the first legwell is adjacent to the second legwell; and   laying a first passenger across the first cushion and the second cushion.   
     
     
         21 . The method of  claim 20 , further comprising rotating an armrest attached to the first and/or second seat, and laying a second passenger across the first and second seats. 
     
     
         22 . An inflatable cushion comprising:
 a first reservoir and a second reservoir, wherein the first reservoir is in fluid isolation from the second reservoir;   a first reservoir wall around the first reservoir, wherein the first reservoir wall defines a first sub-cushion;   a second reservoir wall around the second reservoir, wherein the second reservoir wall defines a first sub-cushion, wherein the first sub-cushion has a larger first dimension than the second sub-cushion, and wherein the first reservoir has a first reservoir central axis and the second reservoir has a second reservoir central axis, and wherein the first reservoir central axis is collinear with the second reservoir central axis.   
     
     
         23 . The cushion of  claim 22 , wherein the first dimension is width. 
     
     
         24 . The cushion of  claim 22 , wherein the first dimension is length. 
     
     
         25 . A method of using an inflatable cushion having a first bladder and a second bladder comprising:
 positioning the cushion in the legwell between the front of a first seat and the rear of a second seat;   inflating the first bladder to a first pressure; and   inflating the second bladder to a second pressure, wherein the second pressure is less than the first pressure.   
     
     
         26 . A method of  claim 25 , wherein the first reservoir is below the second reservoir.