Abstract: In one example, this disclosure describes a method including receiving, at a central controller of an air mattress system, a plurality of air pressure value, determining a plurality of average values using the plurality of the received air pressure values, calculating a difference value between a first one of the plurality of average values and a second one of the plurality of average values, comparing the difference value to a threshold value, determining, based on the comparison, whether a user of the air mattress system moved.

Abstract: A software-implemented method may receive, organize, and aggregate survey answers from multiple survey sources into a single database, regardless of the initial method of collection. Survey answers may require certain common information fields. The survey answers may include media which is transferred from the survey source to the database, and the original copy at the survey source deleted upon a completed transfer. A survey participant may access his own answer, associate it with a user account using a passcode, and make edits to the answer; the source of a survey may also edit an answer by resubmitting the answer. Edited answers may be displayed along with the original version, for instance in a “threaded” display format.

Abstract: A software-implemented method may receive, organize, and aggregate survey answers from multiple survey sources into a single database, regardless of the initial method of collection. Survey answers may require certain common information fields. The survey answers may include media which is transferred from the survey source to the database, and the original copy at the survey source deleted upon a completed transfer. A survey participant may access his own answer, associate it with a user account using a passcode, and make edits to the answer; the source of a survey may also edit an answer by resubmitting the answer. Edited answers may be displayed along with the original version, for instance in a “threaded” display format.