US 11,889,928 B2
Mattress with adjustable firmness
Kody Lee Karschnik, Maple Grove, MN (US); Wade Daniel Palashewski, Andover, MN (US); Rob Nunn, Eden Prairie, MN (US); Eric Rose, Easley, SC (US); Samuel Hellfeld, Edina, MN (US); Jerry Boyer, Zimmerman, MN (US); Steven Jay Young, Los Gatos, CA (US); and Carl Hewitt, San Jose, CA (US)
Assigned to Sleep Number Corporation, Minneapolis, MN (US)
Filed by Sleep Number Corporation, Minneapolis, MN (US)
Filed on Mar. 29, 2021, as Appl. No. 17/216,297.
Application 17/216,297 is a continuation of application No. 16/595,991, filed on Oct. 8, 2019, granted, now 10,959,535.
Application 16/595,991 is a continuation of application No. 15/052,270, filed on Feb. 24, 2016, granted, now 10,441,087, issued on Mar. 30, 2021.
Application 15/052,270 is a continuation in part of application No. 14/740,832, filed on Jun. 16, 2015, abandoned.
Claims priority of provisional application 62/273,764, filed on Dec. 31, 2015.
Claims priority of provisional application 62/254,383, filed on Nov. 12, 2015.
Claims priority of provisional application 62/120,294, filed on Feb. 24, 2015.
Prior Publication US 2021/0282570 A1, Sep. 16, 2021
Int. Cl. A47C 27/08 (2006.01)
CPC A47C 27/084 (2013.01) [A47C 27/082 (2013.01); A47C 27/083 (2013.01); A47C 27/088 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A mattress system comprising:
a mattress comprising:
a fabric cover;
first and second layers of foam material positioned inside the fabric cover;
an adjustable air layer positioned inside the fabric cover between the first and second layers of foam material, the adjustable air layer comprising:
an air bladder; and
an open-cell foam material positioned inside the air bladder and configured to bias the air bladder to an inflated position when the open-cell foam material is exposed to atmospheric pressure; and
a valve system fluidically connected to the air bladder and configured to regulate the air bladder; the valve system comprising:
a valve configured to selectively expose the open-cell foam material to atmospheric pressure, the valve comprising a solenoid and a solenoid controller coupled to the valve and configured to engage the valve;
a pressure sensor;
a processing unit; and
a computer memory storing instructions that are executable by the processing unit;
wherein at least some of the instructions, when executed by the processing unit, cause the processing unit to issue commands that:
open the valve for a first period of time to establish a desired pressure;
close the valve after the first period of time;
wherein the mattress is configured to be folded upon itself in a shippable position to reduce a dimension of the mattress in at least one direction; and
packaging configured to compress and retain the mattress such that each of the air bladder, the open-cell foam material, and one or more layers of foam material are compressed.