SLEEP CYCLE DETECTOR

摘要

PROBLEM TO BE SOLVED: To provide a means for detecting a sleep cycle of a living body without collecting EEG, or the like. SOLUTION: An approximate incidence of body movements is detected by a method 7 that calculates the approximate incidence of body movements from a somatic vibration detected by a vibration sensor 2 installed in the lower side of a mattress 1 and heart rate changes are detected by a method 10 that detects the sleep cycle before the sleep cycle is detected by using either one of these methods or both of them using a sleeve cycle detector 12, when an outline of the sleep cycle can easily be detected without obtaining EEG, EMG, EOG, or the like, or installing an electrode, or the like, in a living body.