Bed microclimate control with external heat compensation

A method comprising:

• monitoring a pressure of a first air chamber of a mattress;
• monitoring a temperature of air supplied from an air system to a layer above the first air chamber;
• detecting presence of a user on the mattress;
• generating a first signal representative of a change of a pressure in the first air chamber;
• generating a second signal based at least on the first signal representative of the change of the pressure in the first air chamber,
• changing, using the second signal, the temperature of air supplied from the air system by an offset value, the offset value calculated based on the change of the pressure of the first air chamber and configured to maintain pressure in the first air chamber at or near a pressure set point for the first air chamber of the mattress.

A bed system comprising:

• a mattress including:
• a first layer configured to support a user, and
• a first air chamber positioned below the first layer and configured to be inflated or deflated to adjust firmness of the first air chamber;
• a first air system configured for controlling pressure of the first air chamber of the mattress;
• a second air system configured for conditioning air at the first layer of the mattress above the first air chamber;
• and
• a controller having one or more processors and a computer-readable storage medium coupled to the one or more processors having instructions stored thereon which, when executed by the one or more processors, cause the one or more processors to perform operations comprising:
• detecting presence of the user on the mattress;
• determining an expected temperature offset relating to user presence;
• generating a signal based at least on the expected temperature offset relating to the user presence,
• when the user is not detected on the mattress, operating the second air system in a first mode to control temperature at the top of the mattress;
• and
• when the user is detected on the mattress, operating the second air system in a second mode to control temperature at the top of the mattress based on the expected temperature offset and the signal, wherein the second mode differs from the first mode based at least in part on the second mode being adjusted according to the expected temperature offset relating to user presence.