Bed with user occupancy tracking

A method performed by data processing apparatuses, the method comprising:

• determining, by a computing device, that a mattress is unoccupied;
• receiving, from a mattress pump and at a computing device, a stream of pump pressure readings, the pump pressure readings recording the air pressure of the mattress;
• identifying, by the computing device, an increase in pump pressure readings within a time window;
• after identifying the increase in pump pressure readings within the time window and for each received pump pressure readings, until the computing device determines that a difference is significant compared to a threshold value:
• calculating, by the computing device, a trailing average pressure that represents an average of N most recent pump pressure readings in the stream of pump pressure readings;
• and
• determining, by the computing device, the difference between the pump pressure reading and the trailing average pressure;
• and
• responsive to the computing device determining that the difference is significant compared to the threshold value, performing one of the group consisting of:
• issuing a presence event, storing a value in computer readable memory, and engaging a peripheral device wherein engaging a peripheral device comprises engaging an under-bed lighting system.

A bed system comprising:

• a mattress having an air bladder;
• a pressure sensor fluidically connected to the air bladder;
• and
• a controller in communication with the pressure sensors and configured to receive pressure signals from the pressure sensor, wherein the controller is further configured to:
• determine, by a computing device, that a mattress is unoccupied;
• receive, from a mattress pump and at a computing device, a stream of pump pressure readings, the pump pressure readings recording the air pressure of the mattress;
• identify, by the computing device, an increase in pump pressure readings within a time window;
• after identifying the increase in pump pressure readings within the time window and for each pump pressure readings, until the computing device determines that a difference is significant compared to a threshold value:
• calculate, by the computing device, a trailing average pressure that represents an average of N most recent pump pressure readings in the stream of pump pressure readings;
• and
• determine, by the computing device, the difference between the received pump pressure reading and the trailing average pressure;
• and
• responsive to the computing device determining that the difference is significant compared to the threshold value, engage a peripheral device comprising engaging the peripheral device in a way that physically alters an environment around the mattress;
• a pump fluidically connected to the air bladder, wherein the controller comprises a pump controller for driving the pump to inflate the air bladder to a desired pressure upon command by a user.