Sleep detection method and device and sleep aiding equipment and method

The invention relates to the technical field of sleep aiding, and discloses a sleep detection method and device and sleep aiding equipment and method. The sleep detection method comprises the following steps of acquiring an electroencephalogram signal of a user; processing the electroencephalogram signal to obtain energy values of the electroencephalogram signal in a plurality of set frequency bands; calculating relative energy values of the electroencephalogram signal in the plurality of set frequency bands; and determining a sleep state, a mental stress and a fatigue degree according to therelative energy values. The sleep state, the mental stress and the fatigue degree of the user can be determined at the same time only according to the electroencephalogram signal, and multiple piecesof detection data related to sleep can be obtained through one-time detection. Equipment required by the method is relatively simple, and the method can be conveniently applied to the portable sleep aiding equipment. 本公开涉及助眠技术