PROBLEM TO BE SOLVED: To provide information processing equipment capable of evaluating a subject's sleep state in such a manner as not to misestimate the subject's sleep state by a threshold setting mistake.SOLUTION: Information processing equipment 20 calculates a frequency value Z (A) which indicates the frequency of performance of a turning-in-bed behavior at a subject's turning-in-bed angle of A degrees or more, in regard to each of a plurality of angle values A, on the basis of a plurality of turning-in-bed angles being angles of rotation around a body axis in each turning-in-bed behavior performed by the subject during sleep, and calculates and outputs a turning-in-bed frequency factor &alpha； associated with the subject, on the basis of the plurality of the frequency values Z (A) calculated by a frequency value calculation unit in regard to the plurality of angle values A.
