Some embodiments of the present invention relate to a semiconducting device and method that include a substrate and a first die that is attached to the substrate. A generally rectangular size specific inflatable member is disposed between a mattress and box springs in an unsecured manner so as to create a functional space between the mattress and inflatable member into which the bed linen can be secured during the bed making process. The emission signal filter is a linear-phase filter that provides a filtered emission signal having substantially symmetrical rise and fall edges.