An adjustable mattress is described herein. The adjustable mattress is comprised of one or more adjustable elements. The adjustable elements may, in some examples, be filled with air or other fluid in order to adjust the height and firmness of the adjustable mattress. The adjustable mattress may provide a user with assistance in rolling over or repositioning while using the adjustable mattress.

An adjustable mattress is described herein. The adjustable mattress is comprised of one or more adjustable elements. The adjustable elements may, in some examples, be filled with air or other fluid in order to adjust the height and firmness of the adjustable mattress. The adjustable mattress may provide a user with assistance in rolling over or repositioning while using the adjustable mattress.

The air mattress includes: upper sheet, lower sheet and annular side wall sheets, wherein the edges of the upper sheet are connected with the upper edges of the side wall sheets, the edges of the lower sheet are connected with the lower edges of the side wall sheets to form main air cavity; the inner surface of side wall sheet is fixed with annular side wall belt, the side wall belt and the upper sheet are connected by first support belt, the side wall belt and the lower sheet are connected by second support belt, and the side wall belt and the side wall sheet are fixedly connected by third support belt and fourth support belt, respectively; and annular first chamber consistent with the extending direction of the side wall sheet is formed in the side wall belt. The bed includes the air mattress.

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.

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.

Apparatus and methods related to an underbody support for supporting a body of a being, such as during surgery to prevent contact pressure injuries. In certain embodiments, the underbody support may include one or more inflatable chambers enclosing a volume. At least one of the inflatable chambers may include one or more compression sensitive switches for monitoring the volume of the inflatable chamber, and the one or more compression sensitive switches may be located within the inflatable chamber. In some embodiments the one or more compression sensitive switches are sized to close when the said inflatable chamber is deflated to a desired residual volume.

Apparatus and methods related to an underbody support for supporting a body of a being, such as during surgery to prevent contact pressure injuries. In certain embodiments, the underbody support may include one or more inflatable chambers enclosing a volume. At least one of the inflatable chambers may include one or more compression sensitive switches for monitoring the volume of the inflatable chamber, and the one or more compression sensitive switches may be located within the inflatable chamber. In some embodiments the one or more compression sensitive switches are sized to close when the said inflatable chamber is deflated to a desired residual volume.

Disclosed are beds having stackable air chambers. A mattress can include a first air chamber, a second air chamber stacked beneath the first air chamber and fluidly connected to the first air chamber, and a support stacked beneath the first air chamber and positioned between the second air chamber and a foot end of the mattress. The first air chamber can extend across a length of the mattress from a head end to the foot end of the mattress. The second air chamber can be positioned at a shoulder region of the mattress. The first and second air chambers can have a common internal pressure, such that decreasing the pressure in the first and second air chambers cause the support stacked beneath the first air chamber and positioned between the second air chamber and the foot end of the mattress to increase support at a lumbar region of the mattress.

Disclosed are beds having stackable air chambers. A mattress can include a first air chamber, a second air chamber stacked beneath the first air chamber and fluidly connected to the first air chamber, and a support stacked beneath the first air chamber and positioned between the second air chamber and a foot end of the mattress. The first air chamber can extend across a length of the mattress from a head end to the foot end of the mattress. The second air chamber can be positioned at a shoulder region of the mattress. The first and second air chambers can have a common internal pressure, such that decreasing the pressure in the first and second air chambers cause the support stacked beneath the first air chamber and positioned between the second air chamber and the foot end of the mattress to increase support at a lumbar region of the mattress.

An air valve assembly includes a housing defining an internal channel, a plunger member positioned in the internal channel and configured to slide relative to the housing, a biasing member positioned in the internal channel and configured to apply a biasing force onto the plunger member, a sealing member defining a first inflation aperture, the plunger member slidably received by the first inflation aperture, a second deflation aperture defined by the housing and in fluid communication with the internal channel, and a deflation control member slidably connected to the housing, the deflation control member configured to selectively seal the second deflation aperture.