biostudies-literatureUnknown9(6)Robertson N: The supine sleep position in late pregnancy is a major risk factor for stillbirth, with a population attributable risk of 5.8% and one in four pregnant women reportedly sleeping in a supine position. Although the mechanisms linking the supine sleep position and late stillbirth remain unclear, there is evidence that it exacerbates pre-existing maternal sleep disordered breathing, which is another known risk factor for adverse perinatal outcomes. Given that maternal sleep position is a potentially modifiable risk factor, the aim of this study was to characterize and correlate uteroplacental and fetal hemodynamics, including cardiac function, in a cohort of women with apparently uncomplicated pregnancies with their nocturnal sleep position. This was a prospective observational cohort study Journal of clinical medicineE1773https://www.ebi.ac.uk/biostudies/studies/S-EPMC7356729biostudies-literatureSleep in the Supine Position during Pregnancy Is Associated with Fetal Cerebral Redistribution.PMC7356729Okano SRobertson NKumar SfalseSleep in the Supine Position during Pregnancy Is Associated with Fetal Cerebral Redistribution.: The supine sleep position in late pregnancy is a major risk factor for stillbirth, with a population attributable risk of 5.8% and one in four pregnant women reportedly sleeping in a supine position. Although the mechanisms linking the supine sleep position and late stillbirth remain unclear, there is evidence that it exacerbates pre-existing maternal sleep disordered breathing, which is another known risk factor for adverse perinatal outcomes. Given that maternal sleep position is a potentially modifiable risk factor, the aim of this study was to characterize and correlate uteroplacental and fetal hemodynamics, including cardiac function, in a cohort of women with apparently uncomplicated pregnancies with their nocturnal sleep position. This was a prospective observational cohort study 2020-01-01T00:00:00Z2020 Jun2025-04-19T18:00:45.177Z2025-04-19T18:00:45.177ZS-EPMC73567293251738510.3390/jcm9061773