A qualitative study on commercially available: Sleep monitoring systems and sleep analysis tools

Background: A sound sleep is the key parameter for healthy life. The monitoring of such vital parameter is very complex as it is associated with electrical waves generated by brain. In this paper, study focuses on comparison of various sleep monitors available commercially based on technique used and complexities involved-in, to analyze the quality of sleep. Method: This qualitative study consolidates the information from 1913 to 2017, about sleep, its importance and sleep monitoring systems. The conventional sleep monitoring method Polysomnography (PSG) to the wearable devices reviewed comparatively. The study shows that sleep is a function of brain. Results: The data collected from various sources are compared and its result shows that 85% of commercially available system are not using the important parameter of brain signals, only 15% present commercial sleep monitoring system are based on Electroencephalograph. Conclusion: The study reveals that there is an actual need of sleep monitoring system. The available sleep monitors have a great scope for research to improve the quality of sleep analysis in daily life.