According to an embodiment, a bed system includes a plurality of bed devices and a first input/output device capable of communicating with the plurality of bed devices. The first input/output device implements a first operation. During the first operation, the first input/output device receives input of a first set value relating to a first item set in each of the plurality of bed devices. At least one of the first input/output device and the plurality of bed devices implements an operation corresponding to the first set value. Thus, a bed system having improved usability is provided.