title: Identification of nocturnal movements during sleep using the non-contact under mattress bed sensor.
abstract: This paper describes the calculation of statistical, spatial and spatiotemporal features from a novel non-contact technology for sleep monitoring, the Under Mattress Bed Sensor (UMBS). Data was collected from two relatively healthy adults with a possible sleep disorder in a clinical setting. Methods for the extraction of statistical data describing overall bed restlessness, a spatial description of movement (centre and spread of pressure) and a spatiotemporal description of each in-bed body movement over the entire sleeping episode are discussed using the pressure sensing grid. These provide a quantitative description of sleep and restlessness throughout the night.
authors.affiliation: National University of Ireland, Maynooth, USA. lwalsh@eeng.nuim.ie
authors.forename: Lorcan
authors.initials: L
authors.lastname: Walsh
authors.forename: Eddie
authors.initials: E
authors.lastname: Moloney
authors.forename: Seán
authors.initials: S
authors.lastname: McLoone
mesh_terms: D056044:Actigraphy / Q000295:instrumentation*; D000465:Algorithms; D001513:Beds; D002940:Circadian Rhythm / Q000502:physiology*; D003627:Data Interpretation, Statistical; D018670:Monitoring, Ambulatory / Q000295:instrumentation*; D009068:Movement / Q000502:physiology*; D017286:Polysomnography / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012890:Sleep / Q000502:physiology*; D014159:Transducers