Unobtrusive Monitoring of Sleep Cycles: A Technical Review

Polysomnography is the gold-standard method for measuring sleep but inconvenient and limited to a laboratory or hospital setting. As result, vast majority of patients do not receive proper diagnosis. In an attempt solve this issue, experts are continually looking unobtrusive affordable alternatives that can provide longitudinal tracking. Collecting data on accelerate epidemiological studies exploring effect health disease. These be in form wearables (e.g., actigraphs) nonwearable under-mattress trackers). To end, paper aims review several attempts made by researchers toward monitoring, specifically cycle. We have performed literature search between 2016 2021 following databases were used retrieving related articles cycle monitoring: IEEE, Google Scholar, Journal Clinical Sleep Medicine (JCSM), PubMed Central (PMC). Following our survey, although existing devices showed promising results, most restricted small sample healthy individuals. Therefore, broader scope participants should taken into consideration during future proposals assessments tracking systems. This because factors such as gender, age, profession, social class largely affect quality. Furthermore, combination sensors, e.g., smartwatches trackers, necessary achieve reliable results. That is, complementary each other, so both needed boost field at-home monitoring.