Cohort study investigates the link between maternal sleep position and fetal growth, suggesting further exploration is needed.
In this cohort, there was no evidence of an association between objectively measured supine sleep and customised birthweight centile. Yet to be identified mechanisms unrelated to fetal growth may be responsible for supine going-to-sleep position being a risk factor for late stillbirth. Further prospective investigation is needed to untangle cause and effect; however, given the low rate of stillbirth, such a study may not be feasible.
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Wilson et al. (2026) studied this question.
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