Electronic switch for controlling a device in dependency on a sleep stage

Abstract

An electronic switch for controlling a deviceby switching a function of the device at least in dependence on a sleep stage of a human. The switch includes an EEG data interface configured to receive brain activity data from an EEG sensorconfigured to monitor electrical activity of the brain of the human during a training phase, an EEG sleep classifierconfigured to classify sleep stages of the human from the received brain activity data, and a body data interface configured to receive body activity data from an alternative sensorconfigured to monitor a bodily function of the human both during the training phase and during a subsequent usage phase. The alternative sensor is different from the EEG sensor, and the electronic switch further includes an alternative sleep classifierand a machine learning system, the machine learning system being configured to train the alternative sleep classifierto classify a sleep stage of the human from the received body activity data, the learning system using sleep stages classified by the EEG sleep classifierand concurrent body activity data received from the alternative sensor as training data, wherein in the usage phase, the deviceis controlled in dependency on sleep stages of the human classified by the alternative sleep classifier. A control logicis configured to at least determine that the classified sleep stage is one of a set of particular sleep stages and to switch a function of the device at least in dependency on said determination.