Abstract: Systems and methods using the systems of testing radio frequency receivers include a radio frequency receiver testing device that has a PIN switch adapted to receive a radio transmission, a thermal diode coupled to the PIN switch and controlling the amount of noise within the PIN switch, and a noise diode providing a stable noise source to the radio frequency receiver testing device.

Abstract: A method is provided for selecting one of a plurality of different bedding mattresses for a customer. The method includes the steps of receiving a set of data related qualitative information related to the customer or the customer's sleeping habits and processing by a processor the set of data to evaluate support needs for a customer. The method further includes the step of determining which of the plurality of bedding mattresses has support characteristics that closely match the support needs of the customer.

Abstract: A mattress including a plurality of layers, each layer extending in a substantially parallel, horizontal direction and being positioned in vertical relation to other layers and each layer further having a perforated or open-cell structure. At least one layer has a gel dispersed within the perforated or open-cell structure of the layer.

Abstract: A mattress comprises an upper surface and a lower surface opposite the upper surface. The mattress further includes first and second opposing side surfaces extending between the upper surface and the lower surface and third and fourth opposing side surfaces extending between the upper surface and the lower surface and between the first and second opposing side surfaces. A core section is formed by the upper and lower surfaces and first and second opposing core section side surfaces and third and fourth opposing core section side surfaces and an extension extends outwardly from a side surface of the core section. The extension is fixedly connected to or integral with the core section and the extension provides the upper surface with a greater area than the lower surface. The extension is capable of supporting a user without a support structure being positioned below the extension.

Abstract: A mattress including a plurality of layers, each layer extending in a substantially parallel, horizontal direction and being positioned in vertical relation to other layers and each layer further having a perforated or open-cell structure. At least one layer has a gel dispersed within the perforated or open-cell structure of the layer.

Abstract: A mattress comprises an upper surface and a lower surface opposite the upper surface. The mattress further includes first and second opposing side surfaces extending between the upper surface and the lower surface and third and fourth opposing side surfaces extending between the upper surface and the lower surface and between the first and second opposing side surfaces. A core section is formed by the upper and lower surfaces and first and second opposing core section side surfaces and third and fourth opposing core section side surfaces and an extension extends outwardly from a side surface of the core section. The extension is fixedly connected to or integral with the core section and the extension provides the upper surface with a greater area than the lower surface. The extension is capable of supporting a user without a support structure being positioned below the extension.

Abstract: A mattress comprises an upper surface and a lower surface opposite the upper surface. The mattress further includes first and second opposing side surfaces extending between the upper surface and the lower surface and third and fourth opposing side surfaces extending between the upper surface and the lower surface and between the first and second opposing side surfaces. A core section is formed by the upper and lower surfaces and first and second opposing core section side surfaces and third and fourth opposing core section side surfaces and an extension extends outwardly from a side surface of the core section. The extension is fixedly connected to or integral with the core section and the extension provides the upper surface with a greater area than the lower surface. The extension is capable of supporting a user without a support structure being positioned below the extension.

Abstract: A mattress comprises an upper surface and a lower surface opposite the upper surface. The mattress further includes first and second opposing side surfaces extending between the upper surface and the lower surface and third and fourth opposing side surfaces extending between the upper surface and the lower surface and between the first and second opposing side surfaces. A core section is formed by the upper and lower surfaces and first and second opposing core section side surfaces and third and fourth opposing core section side surfaces and an extension extends outwardly from a side surface of the core section. The extension is fixedly connected to or integral with the core section and the extension provides the upper surface with a greater area than the lower surface. The extension is capable of supporting a user without a support structure being positioned below the extension.

Abstract: A method is provided for selecting one of a plurality of different bedding mattresses for a customer. The method includes the steps of receiving a first set of data related to body characteristics of the customer and receiving a second set of data related to a dominant sleep position of the customer. The method further includes the steps of processing the first and second sets of data to evaluate support needs for a customer and determining which of the plurality of bedding mattresses has support characteristics that closely match the support needs of the customer.

Abstract: A method is provided for selecting one of a plurality of different bedding mattresses for a customer. The method includes the steps of receiving a set of data related qualitative information related to the customer or the customer's sleeping habits and processing by a processor the set of data to evaluate support needs for a customer. The method further includes the step of determining which of the plurality of bedding mattresses has support characteristics that closely match the support needs of the customer.

Abstract: A method is provided for selecting one of a plurality of different bedding mattresses for a customer. The method includes the steps of receiving a first set of data related to body characteristics and sleeping preferences of the customer and receiving a second set of data related to an evaluation of the customer performed by a medical professional. The method further includes the steps of processing the first and second sets of data to evaluate support needs for a customer and determining which of the plurality of bedding mattresses has support characteristics that closely match the support needs of the customer.

Abstract: A deflection detection system and software. The apparatus includes a system of one or more deflection sensors (18(a)(b)) connected to a pliable rod or other structure. The sensors measure movement due to a fluid impinging on the deflection cylinder (12) and transfers the measurements to a small computer (24). The computer analyzes the sensor measurements and computes a value for fluid speed and direction. The software compensates for various inherent oscillations to improve accuracy over current fluid flow sensors. The device is constructed of low cost materials.